Gran Turismo 4 Prologue/Unused Content

This page is about hidden content found in a Gran Turismo game's resources. This includes unfinished versions of cars and tracks that made it into the final game as well as scrapped content left in the game's files. We have gathered as much information about it as can be found online. Please note that we do not recommend attempting to modify the game to access this content as doing so can make the game unstable and may corrupt your save. Editors: Please ensure the content has been verified against the relevant The Cutting Room Floor page. Unverified information about hidden content may be removed.

This page lists unused content in Gran Turismo 4 Prologue. Unless otherwise noted, all content on this page are derived from this The Cutting Room Floor page.

AI-only Cars

The following cars are only used as opponents when driving certain cars and are not normally accessible.

• Honda 1300 Coupe 9S '70
• Honda CR-X del Sol SiR '92
• Honda Mobil 1 NSX (JGTC) '01
• Honda NSX-R Prototype LM '02
• Mazda RX-8 LM '02
  • The RX-8 LM in GT4P features a different livery from those used in other games. This only applies to the Japanese, Asian, and South Korean NTSC releases, as in the PAL release, it uses the same livery as the one used in other games.
• Mitsubishi Lancer 1600 GSR '73
• Nissan BLUEBIRD 1600 Deluxe (510) '69
• Nissan C-WEST RAZO SILVIA (JGTC) '01
• Nissan Fairlady Z LM '02
• Nissan mm-R Cup Car '01
• Nissan PENNZOIL ZEXEL GT-R (JGTC) '01
• Nissan PRIMERA 20V '01
• Nissan R390 GT 1 Race Car '98
• Toyota au CERUMO Supra (JGTC) '01
• Toyota CELICA 1600GT (TA22) '70
• Toyota Celica TRD Sports M '00
• Toyota GT-ONE Race Car (TS020) '99
• Toyota MR-S S Edition '99
• Toyota SUPERAUTOBACS APEX MR-S (JGTC) '00

Unused Cars

The following cars, while are not normally accessible, are still part of the final game and can be accessed with cheat devices.

• Alfa Romeo Giulia Sprint GTA 1600 '65
• Alfa Romeo 147 2.0 TWIN SPARK '02
• Alfa Romeo 156 2.5 V6 24V '98
• Alfa Romeo 147 GTA '02
• Alpine A110 1600S '73
  • There are two versions of the A110 in GT4P. The first variant includes the Alpine Bleu color only, while an alternate/early variant features yellow headlights and additional colors apart from blue (red, orange, yellow, white, silver, and black).
• ASL ARTA Garaiya (JGTC) '03
• Aston Martin Vanquish '00
• Autobianchi A112 Abarth '79
• Chevrolet Camaro Z28 302 '69
• Chevrolet Camaro Z28 Coupe '97
• Chevrolet Chevelle SS 454 '70
• Chevrolet Corvette GRAND SPORT (C4) '96
• Chevrolet Corvette Stingray L46 350 (C3) '69
• Chevrolet SSR '03
• Chrysler Crossfire '04
• Chrysler Prowler '01
• Chrysler Viper GTS-R Team Oreca Race Car '00
• Citroën C5 V6 Exclusive '03
• Daihatsu Midget II D type '98
• Daihatsu MOVE CX '96
• Daihatsu STORIA X4 '00
• Dodge Viper GTS-R Team Oreca Race Car '00
• Fiat 500 F '65
• Fiat Panda Super i.e. '90
• Ford Focus RS '02
• Ford GT LM '02
• Ford Ka '01
• Honda ACCORD Coupe (US) '88
• Honda ARTA NSX (JGTC) '00
• Honda BALLADE SPORTS CR-X 1.5i '83
• Honda Castrol MUGEN NSX (JGTC) '00
• Honda CITY Turbo II '83
• Honda Civic SiR･II (EG) '93
• Honda CR-X SiR '90
• Honda INSIGHT '99
• Honda LOCTITE MUGEN NSX (JGTC) '01
• Honda N360 '67
• Honda PRELUDE SiR '98
  • The Prelude SiR hidden in GT4P is actually a 1998 model, as used in GT2. Its model year was changed to 1996 in GT4, becoming Prelude SiR '96.
• Honda PRELUDE Type S '98
• Honda RAYBRIG NSX (JGTC) '00
• Honda S800 '66
• Honda TODAY G '85
• Isuzu 117 COUPE '68
• Isuzu PIAZZA XE '81
• Lancia DELTA S4 Rally Car '85
• Lotus Elise '00
• Lotus Europa Special '72
• Mazda Atenza Concept '01
• Mazda Familia Sedan Sport 20 '02
• Mazda Lantis Coupe 2000 Type R '93
• Mazda RX-8 Concept (Type-II) '01
• MINI COOPER S '02
• Mitsubishi ECLIPSE GT '95
• Mitsubishi ECLIPSE Spyder GTS '03
• Mitsubishi FTO GP Version R '97
• Mitsubishi GTO Twin Turbo '95
• Mitsubishi HSR-II Concept '89
• Mitsubishi Lancer Evolution GSR '92
• Mitsubishi Lancer Evolution VII Rally Car '01
• Murao Mazda BP FALKEN RX-7 (D1GP) '03
• Nissan 180SX Type X '96
• Nissan 240RS Rally Car '85
• Nissan 350Z '03
• Nissan 350Z LM '02
• Nissan BLUEBIRD Rally Car (510) '69
• Nissan CUBE EX (FF/CVT) '02
• Nissan Fairlady Z 300ZX Version S TwinTurbo 2seater (Z32) '98
• Nissan GRAN TURISMO SKYLINE GT-R V • spec II (R34) '01
• Nissan GT-R Concept LM '02
• Nissan March G♯ '99
• Nissan Micra Acenta '02
• Nissan mm '02
• Nissan PRIMERA 2.0Te '90
• Nissan SILVIA K's (S13 1800cc) '88
• Nissan SKYLINE GTS-R (R31) '87
• pdi_0001
  • In GT4P, it's an invisible car as seen here. It is unknown as to its purpose let alone what kind of a car it really is.
• Pescarolo Courage C60/Peugeot Race Car '03
  • Never found in the files of any GT4P version, but it is seen in a few pre-release 2003 GT4 trailers/gameplay videos as well as beta screenshots before GT4P's release.
• Peugeot 205 Turbo 16 Evolution 2 Rally Car '86
• Peugeot 206 Rally Car '99
  • It is unknown if it is exclusively hidden only in the files of GT4 Prius Trial Version (Sept 2003) or is also hidden in the files of mainline GT4P as well.
• Plymouth Cuda 440 Six Pack '71
• Polyphony Digital F094/S '94
• Pontiac Sunfire GXP Concept '02
• Pontiac Tempest Le Mans GTO '64
• Pontiac Vibe GT '03
• Renault 5 Maxi Turbo Rally Car '85
• Renault 5 Turbo '80
• Renault AVANTIME '02
• Clio Renault Sport 2.0 16V '02
• Rover MINI COOPER 1.3i '98
• RUF BTR Type II '84
  • Another returning car from GT2. Never made the cut into final GT4, replaced with RUF BTR '86.
• RUF CTR2 '96
• RUF RGT '00
• SILEIGHTY '98
• Subaru IMPREZA Sedan WRX STi '94 ?
  • This variant of the Impreza Sedan WRX STi Version I has six-spoke wheels and two additional colors not in final GT4 (white and dark blue).
• Subaru IMPREZA WRX STi Prodrive Style (Type-I) '01
• Subaru LEGACY B4 Blitzen '00
• Subaru LEGACY B4 RSK '98
• Subaru LEGACY Touring Wagon GT-B '96
• Toyota ARISTO 3.0V '91
• Toyota ARISTO V300 Vertex Edition '00
• Toyota CARINA ED 2.0 X 4WS '89
• Toyota CELICA 2000GT-R (ST162) '86
• Toyota CELICA GT-FOUR (ST205) '98
• Toyota CELICA GT-FOUR RC (ST185) '91
• Toyota CELICA SS-II (ST202) '97
• Toyota CELICA XX 2800GT '81
• Toyota COROLLA LEVIN BZ-R '98
• Toyota COROLLA LEVIN GT-APEX (AE86) '83
• Toyota MR2 1600 G-Limited Supercharger '86
• Toyota pod '01
• Toyota PRIUS G (J) '02
• Toyota SPRINTER TRUENO BZ-R '98
• Toyota SPRINTER TRUENO GT-APEX (AE86) '83
• Toyota SUPRA 2.5GT Twin Turbo R '90
• Toyota Supra RZ '97
• Toyota WiLL VS '01
• TVR Cerbera Speed 6 '97
• TVR Griffith 500 '94
• TVR Tuscan Speed 6 '00
• TVR V8S '91
  • Found only in the files of NTSC-K GT4P.
• Volkswagen Beetle 1100 Standard (Type-11) '49
  • Different model of the car from its appearance in final GT4, complete with a completely different color selection and a different license plate.
• Volkswagen Golf IV GTI '01
• Volkswagen Karmann Ghia Coupe (Type-1) '69
• Volkswagen Lupo Cup Car '00
• Volkswagen New Beetle Cup Car '00