Gran Turismo 4 Unlockables
Unlockable Cars in License Centre
| Unlockable | How to Unlock |
| VOLKSWAGEN Lupo 1.4 '02 | Complete Domestic B License |
| MAZDA KUSABI '03 | Get All Silver in Domestic B License |
| HONDA S500 '63 | Get All Golds in Domestic B License |
| PONTIAC Sunfire GXP Concept '02 | Complete Domestic A License |
| HONDA DUALNOTE '01 | Get All Silver in Domestic A License (Japanese Version) |
| NISSAN SKYLINE GT-R '01 | Get All Golds in Domestic A License |
| NIKE One 2022 | Complete International B License |
| MAZDA RX-8 Concept (Type-II) '04 | Get All Silver in International B License |
| JENSEN HEALEY Interceptor Mk.III '74 | Get All Gold in International B License |
| NISMO 270R '94 (S14) | Complete International A License |
| NISSAN GT-R Concept '01 | Get All Silver in International A License |
| DOME ZERO '78 | Get All Gold in International A License |
| MERCURY Cougar XR-7 '67 | Complete Super License |
| PONTIAC Solstice Coupe Concept '02 | Get All Silver in Super License |
| FORD Model T Tourer '15 | Get All Golds in Super License |
| Acura DN-X '02 | A License - All Silver or better (US Version) |
| Unlockable | How to Unlock |
| Autobianchi A112 Abarth '79 | Get all gold in all the races for the Sunday Cup |
| Audi Nuvollari Quattro '03 | Complete 25% of game |
| NISMO Skyline GT-R LM Road Going Version | Win the Race of the Red Emblem |
| Triumph Spitfire 1500 '74 (Special Color- Maroon Metallic) | Win the Spitfire Cup at the Triumph dealer. |
| Mini Marcos GT '70 | Get gold in Mini Mini Sports Meeting |
| Jaguar XJ-R9 Race Car | Complete 50% of the game |
| Polyphony Formula Gran Turismo 04 (Black Version) | Complete 100% of Gran Turismo Mode |
Unlockable Cars in Endurance Hall
| Unlockable | How to Unlock |
| TOYOTA 88C-V Race Car (MINOLTA) '89 | Win El Captain 200 Miles |
| DODGE Charger Super Bee 426 Hemi '71 | Win New York 200 Miles |
| FORD GT LM Edition '02 | Win Infineon World Sport Car Trophy |
| NISSAN R92CP Race Car '92 | Win Fuji 1000km |
| BENTLEY Speed 8 Race Car '03 | Win Sarthe Circuit 24 Hours II |
| AUDI R8 '01 | Win Sarthe Circuit 24 Hours I |
| NISSAN SKYLINE GT-R Race Car (CALSONIC) '93 | Win Tsukuba 9 Hours Endurance |
| HONDA NSX-R LM Edition Road Car '02 | Win Motegi 8 Hours Endurance |
| LISTER Storm V12 Race Car '99 | Win Suzuka 1000km |
| AUDI Abt Audi TT-R Touring Car '02 | Win Nurburgring 4 Hours Endurance |
| POLYPHONY Formula Gran Turismo '04 | Win Nurburgring 24 Hours Endurance |
| HONDA NSX-R LM Edition Race Car '02 | Win Super Speedway 150 Miles |
| MITSUBISHI FTO Super Touring Car '97 | Win Tokyo R246 300km |
| MAZDA RX-7 LM Race Car '01 | Win Roadster 4 Hours Endurance |
| FORD GT40 Race Car '69 | Win Laguna Seca 200 Miles |
| Auto Union V16 Type C Streamline | Win Grand Valley Speedway 300Km |
| Chaparral 2D Race Car ('67) | Win Nurburgring 4 Hours Endurance |
Unlockable Cars in Beginner Hall
| Unlockable | How to Unlock |
| AUTOBIANCHI A112 Abarth '79 | Win the Sunday Cup |
| MAZDA Atenza Concept '01 | Win the FF Challenge |
| NISSAN SKYLINE 2000GT-B '67 | Win the FR Challenge |
| TOYOTA Motor Triathlon Race Car '04 | Win the 4WD Challenge |
| LOTUS Esprit Turbo HC '87 | Win the MR Challenge |
| GINETTA G4 '64 | Win the Light Weight K Cup |
| CHRYSLER Prowler '02 | Win the Spider & Roadster |
| CHEVROLET Silverado SST Concept '02 | Win the Sport Truck Race |
| MAZDA 6 Concept '01 | Win the FF Challenge (U.S Version) |
Unlockable Cars in Professional Hall
| Unlockable | How to Unlock |
| MAZDA Mazdaspeed Atenza '05 | Win Clubman Cup |
| NISSAN OPTION Stream Z '04 | Win Tuning Car Grand Prix |
| HONDA NSX-R Concept '01 | Win Race of NA Sports |
| MAZDA BP FALKEN RX-7 (D1GP) '03 | Win Race of Turbo Sports |
| RUF CTR Yellow Bird '87 | Win Boxer Spirit |
| MERCEDES-BENZ Daimler Motor Carriage '1886 | Win World Classic Car Series |
| HONDA S800 RSC Race Car '68 | Win World Compact Car Race |
| CIZETA V16T '94 | Win Supercar Festival |
| FORD GT LM Edition Spec-II '04 | Win Gran Turismo World Championship |
| MAZDA Mazdaspeed 6 '05 | Win Clubman Cup (U.S Version) |
Unlockable Cars in Extreme Hall
| Unlockable | How to Unlock |
| BMW McLaren F1 GTR Race Car '97 | Win Gran Turismo All Stars |
| NISSAN GT-R Concept LM Race Car '02 | Win Dream Car Championship |
| OPERA PERFORMANCE S2000 '04 | Win Polyphony Digital Cup |
| VOLKSWAGEN W12 Nardo Concept '01 | Win Like The Wind |
| POLYPHONY Formula Gran Turismo '04 | Win Formula GT World (Japanese version) |
| NISSAN GRAN TURISMO SKYLINE GT-R (PaceCar) '01 | Win Real Circuit Tours |
| FORD GT '05 | Win Premium Sports Lounge |
| Mercedes Sauber C 9 Race Car '89 | Win Formula GT World (US version) |
Unlockable Cars in Mission Hall
| Unlockable | How to Unlock |
| DMC DeLorean S2 '04 | Complete Missions 1-10 |
| JAY LENO Tank Car '03 | Complete Missions 11-20 |
| PAGANI Zonda Race Car '01 | Complete Missions 21-24 |
| TOYOTA 7 Race Car '70 | Complete Missions 25-29 |
| NISSAN R89C Race Car '89 | Complete Missions 30-34 |
Unlockable Cars in American Hall
| Unlockable | How to Unlock |
| CHEVROLET Corvette Convertible (C1) '54 | Win American Championship |
| CHEVROLET Camaro LM Race Car '01 | Win Stars and Stripes |
| CHEVROLET Chevelle SS 454 '70 | Win American Muscle Car Championship |
| PLYMOUTH Super Bird '70 | Win Classic Muscle Car Championship |
Unlockable Cars in European Hall
| Unlockable | How to Unlock |
| JAGUAR XJ220 LM Edition '01 | Win European Championship |
| JAGUAR E-Type Coupe '61 | Win British GT Cup |
| LOTUS Europa Special '71 | Win British Light Weight Car Race |
| MERCEDES-BENZ AMG CLK-GTR Race Car '98 | Win German Touring Car Championship |
| ALFA ROMEO 155 2.5 V6 TI Race Car '93 | Win Italian Festival |
| CITROEN 2CV Type-A '54 | Win French Championship |
| MERCEDES-BENZ Benz Patent Motor Wagen '1886 | Win European Classic Car Championship |
| VOLVO 240 GLT Estate '88 | Win European Hot Hatch Car Championship |
| ALFA ROMEO Giulia Sprint Speciale '63 | Win 1000 Miles |
| BMW M3 GTR Race Car '01 | Win Schwarzwald League A |
| MERCEDES-BENZ AMG 190E 2.5 16V Evolution II (DTM) '92 | Win Schwarzwald League B |
Unlockable Cars in Japanese Hall
| Unlockable | How to Unlock |
| NISSAN Fairlady Z Concept LM Race Car '02 | Win Japanese Championship |
| NISSAN MOTUL PITWORK Z (JGTC) '04 | Win Japanese GT Championship |
| NISSAN SKYLINE Hard Top 2000GT-R (KPGC10) '70 | Win Japanese 70's Classic |
| MITSUBISHI HSR-II Concept '89 | Win Japanese 80's Festival |
| NISMO 400R (R33) '96 | Win Japanese 90's Challenge |
| HONDA LIFE STEP VAN '72 | Win Japanese Compact Car Cup |
Unlockable Cars in the Easy Special Condition Hall
| Unlockable | How to Unlock |
| CADILLAC CIEN '02 | Win Rally d' Umbria |
| TOYOTA RSC Rally Raid Car '02 | Win Rally d' Capri |
| FORD RS200 '84 | Win Grand Canyon |
| TOYOTA RSC '01 | Win Ice Arena |
| INFINITI FX45 Concept '02 | Win Chamoni |
| ALPINE A310 1600VE '73 | Win George Paris |
| MITSUBISHI CZ-3 Tarmac '01 | Win Swiss Alps |
| RENAULT 5 Turbo '80 | Win Tahiti |
| MAZDA RX-8 Concept (Type-I) '01 | Win Tsukuba Circuit |
| LAND ROVER Range Stormer Concept '04 | Win Cathedral Rocks (Trail I) |
| HYUNDAI HCD6 '01 | Win Cathedral Rocks (Trail II) |
Unlockable Cars in Normal Special Condition Hall
| Unlockable | How to Unlock |
| LANCIA Delta HF Integrale Rally Car '92 | Win Rally d' Umbria |
| SUBARU IMPREZA Rally Car Prototype '01 | Win Rally d' Capri |
| MITSUBISHI CZ-3 Tarmac Rally Car '02 | Win Grand Canyon |
| MITSUBISHI Lancer Evolution IV Rally Car'97 | Win Ice Arena |
| SUBARU IMPREZA Rally Car '01 | Win Chamoni |
| RENAULT 5 Maxi Turbo Rally Car '85 | Win George Paris |
| TOYOTA CELICA GT-FOUR Rally Car (ST205) '95 | Win Swiss Alps |
| FORD Escort Rally Car '98 | Win Tahiti |
| MAZDA Atenza Touring Car '02 | Win Tsukuba Circuit |
| SUBARU IMPREZA Rally Car '99 | Win Cathedral Rocks (Trail I) |
| TOYOTA CELICA GT-FOUR Rally Car (ST185) '95 | Win Cathedral Rocks (Trail II) |
| MAZDA 6 Touring Car '02 | Win Tsukuba Circuit ( U.S Version) |
Unlockable Cars in Hard Special Condition Hall
| Unlockable | How to Unlock |
| LANCIA Delta S4 Rally Car '85 | Win Rally d' Umbria |
| FORD RS200 Rally Car '85 | Win Rally d' Capri |
| MITSUBISHI STRAION 4WD Rally Car '84 | Win Grand Canyon |
| NISSAN BLUEBIRD 1600SSS Rally Car (510) '69 | Win Ice Arena |
| LANCIA STRATOS Rally Car '77 | Win Chamoni |
| PEUGEOT 205 Turbo 16 Evolution 2 Rally Car '86 | Win George Paris |
| NISSAN SILVIA 240RS Rally Car '85 | Win Swiss Alps |
| MITSUBISHI PAJERO Rally Raid Car '85 | Win Tahiti |
| FORD GT Concept '02 | Win Tsukuba Circuit |
| SUZUKI ESCUDO Dirt Trial Car '98 | Win Cathedral Rocks (Trail I) |
| MITSUBISHI PAJERO Evolution Rally | Win Cathedral Rocks (Trail II) |