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Gran Turismo 4

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Title Screen

Gran Turismo 4

Developer: Polyphony Digital
Publisher: Sony Computer Entertainment
Platform: PlayStation 2
Released in JP: December 28, 2004
Released in US: February 22, 2005
Released in EU: March 9, 2005

AreasIcon.png This game has unused areas.
MinigameIcon.png This game has unused modes / minigames.
TextIcon.png This game has unused text.
DebugIcon.png This game has debugging material.
RegionIcon.png This game has regional differences.

ProtoIcon.png This game has a prototype article

Despite being delayed for a over a year and a half, Gran Turismo 4 is considered by many to be one of the best games in the series, and one of the best racing games of all time. Featuring over 700 cars and 51 tracks, this one adds a lot more content than its predecessor, and was one of the 5 games on the PS2 to be capable of having 1080i support (one of the other ones being Tourist Trophy, also created by the same developers).

This game is also where the controversial Standard cars in the PS3 games originate. Yeah.

To do:

Well, here we go.

  • Check if unused tracks exist (other than the photomode tracks) and any unused cars.
  • List the other region differences, as I'm sure there's others. The Japanese version has missing cars (such as Peugeot 905) for starters.
  • Try to find any revisional differences, like the Greatest Hits versions.
  • Do a section on the Online Test Version (Japan) and Online Public Beta (US) of the game. The US Online demo apparently has the arcade dirt glitch fixed?
Check out also this thread: Xenn's GT4 Research Topic on GTPlanet.


GT4 MX5 TitleScreen.png
Mazda MX-5 Edition

Special Settings

A hidden menu can be accessed by going to the Options screen and inputting L1, Up, L2, Down, R1, Left, R2, Right, Start, Start on the second controller; the sound heard when entering a menu from the main menu will then be played to confirm the right input. Note that the code must be entered each time the player visits the screen.

The two secret options associated with the input are named Secret and Monitor, both part of Miscellaneous part of the Options menu.

Function Overview

Secret (Special Settings)

This portion of the menu works like the PS3-era secret menus, where available tracks and cars can be restricted, suggesting it's intended for kiosk-related uses.

  • Specific Cars: Restricts the cars available in Arcade Mode to those in Favorites list in the Arcade Mode. This option is not available if no favorites have been yet defined.
  • Specific Courses: Restricts the cars available in Arcade Mode to those set in Course Registration Settings, which is primarily an option related to LAN mode.
  • Specific Opponents: Restricts the opponent cars chosen in Arcade Mode to those in Favorites list in the Arcade Mode.
  • Specific Makes: Allows the game to be set to only feature a certain manufacturer. When this is the case, you cannot enter Gran Turismo Mode, and the title screen's background movie is changed to a generic one with the chosen manufacturer on top of the game logo on the title screen. Selecting none, the default option, reverts to normal gameplay. An example can be seen on the MX-5 Edition's title screen.

Monitor (Detail Monitor Settings)

This portion of the menu allows you to adjust the camera and the display of the screen during races.

  • Flag: Four flags can be chosen (FLAG_NONE, FLAG_ROTY, FLAG ROTX, and FLAG_ROTX|FLAG_ROTY). These appears to deal with settings on each horizontal/vertical axis, but it does not appear to affect anything.
  • Zoom: Adjust the field of view, in range of 0.00 to 3.00.
  • Distance: Adjusts the distance from the viewpoint of the player's camera between 200 to 1200 millimeters; the default setting is 276 mm.
  • Width: Adjusts the width of the display area, between 200 to 600 millimeters.
  • Height: Adjusts the height of the display area, between 200 to 400 millimeters.
  • Aspect: Adjusts the pixel aspect ratio, between 0.00 to 2.00.
  • Overscan Factor: Obvious what it adjusts, the value is 0.00 to 2.00.
  • Border Width (Left, Right, Top, Bottom): Adjusts the width of each side of the screen border in millimeters. The range of each is 0 (default) to 300 millimeters.

The default settings depends on the selected aspect ratio mode:

Setting 4:3 16:9
Zoom 1.00 1.00
Distance 238 276
Width 275 425
Height 205 240
Aspect 0.96 0.97
Overscan Factor 1 1
Border Width (all) 0 0

(Discovery: TheAdmiester, Dezent, Nenkai, SenaUW (2nd controller requirement))

Unused Manufacturers


GT4 tuner logo daimler.png

Daimler (not to be confused with Daimler-Benz; the Daimler here is a Jaguar-owned marque) has an unused logo asset. The brand is not featured in the game. It is unknown as to what car(s) this would have belonged to if the brand were to have been used.

GM Design

GT4 tuner logo gm design.png

There is an unused logo asset for GM Design. This logo is never seen in the game, either as a make/manufacturer, or as a tuner. In Gran Turismo Concept, the Pontiac Solstice Coupe Concept '02 and Cadillac CIEN Concept '02 were branded as GM Design before being changed to Pontiac and Cadillac respectively for this game, so the purpose as to what this would have been used for is unknown, or it could be an unused carryover from the aforementioned title.

An updated GM Design logo asset would later appear in Gran Turismo 6 for their planned Vision Gran Turismo car, but as of Gran Turismo Sport, no Vision GT car had been released under GM Design banner, although they were involved on the Chevrolet Chaparral 2X Vision Gran Turismo project, which is branded as a Chaparral in aforementioned games.


GT4 tuner logo rover.png

An unused logo asset for Rover still exists in the game files. This was perhaps meant to be used for the MINI COOPER 1.3i '98 (which can only be found in the Japanese/Chinese versions of the game) before it was placed into the Mini brand in the game. As the Rover Group manufactured the aforementioned vehicle themselves, this logo would have been used for only this car, but seeing as how BMW bought out the Mini brand name of the Rover Group to manufacture their own lineup of cars, this car was moved into the Mini brand, starting from this game onwards; this technically includes Gran Turismo 3 as well, which would contradict the previous statement, but the aforementioned car was the only car under the Mini brand name in that installment at the time, presuming licensing of the car was already taken care of before the game's release.


Due to changes in Ford Australia's performance division (the company being bought out by Prodrive resulting in Ford Australia replacing them with the in-house FPV brand), the 2000 Ford Falcon XR8 (entered by Ford Tickford Racing in Australian V8 Supercars in real life) was moved from Tickford to Ford Australia dealership. As a result, the Tickford dealership is left unused in this game, although it is still listed as a valid manufacturer/tuner having description text:

US English text:

Tickford: In 1991, Australian performance engineering firm Tickford was tasked by Ford Australia to design high-performance automobiles. It showed the world its considerable engineering capabilities with cars like the XR6 and XR8. In 2001, Tickford's parent was bought by British motor sports constructor Prodrive, which combined Tickford with its other Australian operations to create Ford Performance Vehicles. Today Tickford's know-how and passion for automobiles lives on in FPV.

European English text:

Tickford: This is a technical development company that took on the role of the high performance division of Ford Australia in 1991. Although the XR6 and XR8 clearly demonstrate the high engineering capabilities of Tickford, the company merged with the English motor sports constructor Prodrive in 2001, and so the know-how and passion was transferred to the new Ford Performance Vehicle company.

Toyota Modellista

There is an entry for Toyota Modellista as a valid make in the game's database, under the internal ID of "toyotamodellista". While the car name of Toyota Modellista Celica TRD Sports M (ZZT231) '00 implies Toyota Modellista is the assigned tuner, the car is treated as a TRD car by the game, right down from being sold from the Full Model section of Toyota's tuning shop. The tuner also has a description text:

US English text:

Toyota Modellista: Toyota established this customized-car company in 1997 to keep up with diversifying consumer tastes. The company makes its own original parts and offers car buyers "customized cars not listed in any catalog." These offerings include everything from custom seats and exterior add-ons to completely made-to-order cars.

European English text:

Toyota Modellista: This is a customisation brand that Toyota established in 1997 to handle the diverse preferences of customers. From development of custom parts, changing seat materials, and body tuning, to full order-made customisation, Toyota Modellista offers parts and technology aimed at customers' desires for "a car that is not in the catalogue".

Unlike most of other unused manufacturers, forcibly loading the Toyota Modellista dealership will make the player able to buy the aforementioned Celica. Advertisements for the brand can also be seen in some original tracks, most notably Motorland.


GT4 tuner logo vemac.png

A logo asset for Vemac can be found, alongside being registered as a valid make/tuner in the game's databases. There is leftover description text for the manufacturer to supplement its possible inclusion:

US English text:

Vemac: Tokyo R&D, a company that traditionally built racecars and electronic vehicles, established Vemac in 1998 to achieve its long-cherished dream of building road-going sports cars. Vemac is developing the RD series, which combine original Vemac bodies with Honda engines, and their release is much anticipated. Vemac has already entered prototypes in the Japan GT Championship. Despite regulatory concerns, these prototypes have demonstrated the cars' considerable potential.

European English text:

Vemac: The Vemac brand was established in 1998 in order to realise the long-held dream by R & D Sports of creating a road-going sports car. Up to this point their work had been concerned with mainly race cars and electric cars. The RD series was developed as a combination of a unique chassis mated with a Honda engine, and its release is highly anticipated. Before the release of the road car, the advanced development car will enter the All Japan Grand Touring Championship (JGTC). Although it will be constrained by race regulations, the vehicle has amazing potential and will undoubtedly show the way forward for the company.

It might have been possible that the Vemac RD320R would have featured in the game as its inclusion was a common topic of speculation around 2003. However, the logo asset appears to be a simple placeholder created with one of the game's default white sans-serif fonts, hinting that the inclusion of the manufacturer didn't make it very far during development.

Unused Manufacturer Description Text

Some of used manufacturers/tuners also have unused description text. As these text are available in every language featured, only English text will be featured on this page.


As a tuner selling it's own complete cars from Honda's tuning shop, Mugen has an unused manufacturer description text, as if it is accessed from Tuner Village menu:

US English European English
Mugen: Mugen is a tuner that specializes in Hondas and also competes heavily in motor sports. The company was started in 1973 by Hirotoshi Honda, eldest son of Honda founder Soichiro Honda. Although Mugen is known for competing in a wide range of motor sports events, with a special emphasis on Formula 1, its tuning parts also have a strong following among non-professional car enthusiasts. Mugen: This was a special brand of Honda formed in 1973 based on the two pillars of motor sports and tuning. The founder of Mugen was Hirotoshi Honda, the eldest son of the founder of Honda, Soichiro Honda. Although Mugen is famous for success across a broad range of motor sports, with F1 at the peak, the variety of tuning parts that are developed and fabricated within the company also attract a lot of support.


Like Mugen above, Nismo sells complete cars from Nissan's tuning shop and thus have an unused manufacturer description text:

US English European English
Nismo: Nismo (short for Nissan Motorsports) is Nissan's works division, created in 1984 by merging two Nissan departments: an advertising department that worked for Nissan's motor sports customers, and a department that developed special experimental vehicles. Since then, Nismo has made its name in numerous events, including the Le Mans 24 Hours Race, the All-Japan Touring Car Championship, and the Japan GT Championship. Using this motor sports experience, Nismo also makes tuning parts for street cars and even builds complete cars; both have firmly established reputations for quality. Nismo: Nismo is a works brand of Nissan that formed in 1984 from the merger of the number 3 publicity division that had been promoting motor sports to end customers, and the special vehicles testing division that had been developing race cars. The Nismo name has made an impression with successful performances at a number of venues, include the Le Mans 24 Hour race, the All Japan Touring Car Championship and the All Japan Grand Touring Car Championship. Nismo tuning parts and complete cars for street use that utilise the know-how gained from the circuit are also highly valued.

Polyphony Digital

There is only one car registered under the game's own developer, Formula Gran Turismo '04. While making the Polyphony Digital manufacturer hidden keeps the car under secrecy, it also makes the aforementioned car only able to use Racing: Medium tires outside of Arcade Mode.

US English European English
Polyphony Digital: This single model is a crystallization of all the automotive passion and aspirations in Gran Turismo. Although it does not exist in the real world, this "dream" car represents the same love of cars and the same craftsmanship as any "real world" machine. Polyphony Digital: The spirit of Gran Turismo is the portrayal of an intimate appreciation of, and passion for, the world of cars. This car is an original, dream model designed by the development team, to encapsulate these emotions.

Note that the Formula Gran Turismo cannot be purchased this way, nor any tuning parts (including tires) for the car, except for Increase Rigidity and Rigidity Refresher Plan.


As with Mugen and Nismo examples above, TRD sells complete cars from Toyota's tuning shop and inevitably has it's own manufacturer description text:

US English European English
TRD: Toyota Racing Development (TRD) began as the motor sports and tuning department of Toyota Technocraft, established in 1954. Using know-how gained by competing in the Japan GT Championship and other motor sports events, TRD has over the years developed a wide array of functional and reliable sports parts. Today TRD products can be found in competitive Toyota cars all over the world. TRD: This is the Toyota Technocraft motor sports and tuning division that was formed in 1954. TRD provides feedback on knowledge and skills gained through motor sports operations such as the All Japan Grand Touring Championship, and produces many parts that are overflowing with functionality and reliability. These operations are not limited to Japan, with TRD fixed as an essential sports brand for Toyota cars around the world.

Unused Driving Missions

There are 34 Driving Missions in this game, divided into four mission genres (The Pass, Three Lap Battle, Slipstream Battle, and One Lap Magic, which is divided into two parts for purposes of reception of prize cars). However, it seems that there are plans for a fifth type of Driving Missions called Chase Battle, each with six challenges, all of them seemingly themed after touge (mountain pass) racing, and are set on "rally" city courses, which typically is designed for two cars on the grid.

# Event Name Course Description Text (US English)
35 Chase Battle: Lancia Rally Machine Showdown! Citta di Aria This is a chase battle where you start with a fixed time difference between you and your opponent. If you can reduce this time difference within one lap you will win, but if this increases you will lose. The first round is a rally car contest on the Italian street course.
36 Chase Battle: Lancer Evo Showdown! Costa di Amalfi Chase the next level of super rally prototypes in a rally version of the Lancer Evo VIII. Make up for the massive difference between the competing cars with your driving skills.
37 Chase Battle: Peugeot Rally Machine Showdown! George V Paris This is a night-time French Rally car showdown, taking place in the street stage that passes through the Arc de Triomphe in Paris. You are at the controls of the monster 205T16, racing against the latest generation of 206 rally cars.
38 Chase Battle: Prototype Showdown! Citta di Aria Reverse Two monster cars with a total of 1600 horsepower catapult through the distinctively narrow streets of an old Italian town. Only Gran Turismo brings to life this dream battle in this dream situation.
39 Chase Battle: BMW 12-cylinder Showdown! Costa di Amalfi Reverse This is a serious race between the 2 Le Mans winners boasted by BMW along the Amalfi Coast on the Tyrrhenian Sea. The only thing that can catch the higher level V12LMR is the driver's technique.
40 Chase Battle: Mercedes Showdown! George V Paris Reverse This is a course setup that runs from Champs d'Elysees through George V Avenue and under the Arc de Triomphe in the quiet residential streets. This is an evenly matched battle on the street between 2 racing Mercedes.

These missions also have description text for the pre-race screen, although in the US version of the game, Mission 36's and 38's pre-race text are duplicates of Mission 35's and 37's, respectively; as such, the text dumps for Mission 36 and 38 are from the European version of the game.

# Pre-Race Text
35 Here your rival is a Lancia Delta S4. As this is one of the cars from the period of inception of 4WD, the understeer is so severe it is difficult to turn, yet it has intense speed on the straights. You will give chase in a finely-balanced HF Integrale.
36 Although your rival has better performance across the board, from horsepower and weight to cornering ability, it seems that the tuning settings are imbalanced. Take full advantage of the resulting hesitancy in the rival car's driving to snatch a victory.
37 This is the 205 T16 monster rally car, fitted with a 350 horsepower mid-mounted engine. Although this offers overwhelming speed on the straights, it may not do so well on tight turns. Try to prevent your rivals from closing the gap on corners and breaking away from you.
38 Open and closed canopy - although with a difference in style, both are among the world's fastest prototype machines. For cars with downforce, the key to winning is your recovery technique when a car has closed the gap.
39 The key to the Amalfi Circuit is making small turns to the inside of the numerous stop-and-start hairpins without overrunning the corners. Drive through the few high-speed corners without error, and pray for more power....
40 On this course it is hard make a difference in position using corners as the course layout is too narrow. The timing of when you hit the accelerator when you come out of a small corner is everything in this challenge. Don't forget precision in handling, and avoiding collisions with the walls.
(Discovery: YakumoyukariRZ, Dezent (pre-race text dumps))

Regional Differences

Starting out, we have the usual region changes as found in other games.

Intro Movie

As for changes in the intro, 3 different songs were used for each region, but they all start out using the orchestral version of "Moon Over The Castle", before cutting into the main song halfway through. In the US, the intro uses "Panama" by Van Halen. In Japan, it uses "Moon Over The Castle" the entire way through. And as for Europe, the song used is "Reason is Treason" by Kasabian. All 3 intros also use different clips and different ordering, most likely to better fit the songs that were used for each region.

Car Changes

One car, the Toyota ESSO ULTRAFLO Supra (JGTC) '01 is seen in the NTSC-J and PAL versions of the game, but is clearly absent in the NTSC U/C version. This is due to Esso not existing in America, as the Exxon name is used instead. Although Polyphony Digital could have created an Exxon version, they chose not to and the car never appeared again as other games use only Exxon versions of cars that have Esso/Exxo branding issues.

Additionally, the Mini Cooper 1.3i '98 only appears in the Japanese and early Asian releases for some reason.

Another regional change that is to be expected are the different names for some of the cars used. An obvious one is how the Opel Speedster in the American version is also known as the Vauxhall VX220 elsewhere; however the European/PAL version of the game features the car under both names. Another name change is the JDM Toyota Vitz, which is known as the Toyota Yaris in the PAL version. In the American version meanwhile, the Toyota bB 1.5Z X Version '00 and the Toyota ist 1.5S '02 are replaced with Scion xB '03 and Scion xA '03, which causes problems for the Japanese Compact Cup event as the Scion versions are flagged as American cars, preventing player from using these cars even though the AI uses them.

The Korean version adds four exclusive cars:

  • Lexus IS 200 GT-1 Race Car '04
  • Hyundai Tiburon Turbulence '99
  • Hyundai Tuscani CCS '03
  • Hyundai Click Type-R '04

All of the Korea-only cars would make their worldwide debut in the PSP game, except for the Click Type-R, which have to wait until Gran Turismo 6. The Click is priced at Cr. 10,000, meaning if the car is purchased as the player's first car, the player is left with literally no money, a rare situation.

Like in previous games, all regional variations of the cars, including the Mini, but not the Korea-exclusive cars, are included in all copies of the game for ease of localization. However, the body for the Esso version of Peugeot 905 Race Car '92 and Vauxhall Astra Super Touring Car '00 are missing or not yet coded in the US version of the game, possibly as neither were in the Japanese version of the game.

License Test Changes

The Japanese version of the game had player drive the Pescarolo Sport Pescarolo-Courage - Judd GV5 Race Car '04 in License Test S-14 and Mercedes-Benz Sauber Mercedes C9 Race Car '89 in License Test S-16, each a one-lap trial around Opera Paris and Nürburgring Nordschleife respectively. Outside Japan, the use of Le Mans racers in such tight courses were deemed overkill, so both cars were replaced by Clio Renault Sport V6 Phase 2 '03 and Mercedes-Benz 190 E 2.5 - 16 Evolution II Touring Car '92, respectively. The required times were also adjusted accordingly.

Test Japan International
S-14 Pescarolo Sport Pescarolo-Courage - Judd GV5 Race Car '04 Clio Renault Sport V6 Phase 2 '03
S-16 Mercedes-Benz Sauber Mercedes C9 Race Car '89 Mercedes-Benz 190 E 2.5 - 16 Evolution II Touring Car '92

In a total coincidence, the Japanese version of S-16 license test would resurface in Gran Turismo Sport as part of Lewis Hamilton Time Trial Challenges DLC, as Nürburgring Nordscheliefe is one of the featured tracks and players drive the Sauber C9 in it.

Drivable Photo Travel Tracks

To do:
Test further the remaining tracks.

As it turns out, you can drive on some of the places used in Photo Travel mode by cheat methods as they are treated as tracks by the game. However, you can only go so far, as it's very limited on what you can actually drive on:

  • Beacon Hills: Can only drive on some of the roads before hitting the invisible walls here.
  • Grand Canyon: By the size of the map here, it really shows how far you can go, which isn't much. You can drive on and off the cliffside though, so that's cool. The course map for this track is taken from the namesake rally course.
  • Times Square: You can actually go down most of the main strip here. And a bit unsurprisingly, the map is actually placed to the right of the New York course, as its logo is shown before you start and the map is displayed while driving.
  • Brooklyn: Like the Grand Canyon map, it's very short and you can only drive on the dock you're on, as there are barriers surrounding it.
  • Tsumago: Short and cramped is the best way to describe this one, and you can only drive on some of the village's 'roads', not all.