Complete these tasks to unlock the cars.

Beginner League:

Sunday Cup: Toyota Sprinter Trueno GT-Apex (AE-86 Type I)
Clubman Cup: Mazda Eunos Roadster
FF Challenge: Toyota Vitz RS 1.5
FR Challenge: Nissan Silvia K's 1800cc
MR Challenge: Toyota MR-S S Edition
4WD Challenge: Suzuki Alto Works Suzuki Sports Limited
Lightweight K Cup: Mini Cooper 1.3i
Stars and Stripes Grand Championship: Chevrolet Camaro SS
Spider/Roadster Cup: Mazda Miata Roadster RS
80's Sports Car Cup: Mazda Savanna RX7 Infini III
NA Race of NA Sports: Honda CRX Del Sol SiR
Turbo Race of Turbo Sports: Daihatsu Mira TR XX Avanzato R
Tourist Trophy Audi TT Race: 4 cars, Audi TT 1.8T Quattro
Legend of Silver Arrow Mercedes Benz: Mercedes SLK 230 Kompressor
Altezza Race: 4 cars, Toyota Celica SS-II (all 4 of them)
Vitz Race: 4 cars, Toyota Vitz RS 1.5 (all 4 of them)
Type R Meeting: 4 cars, Acura RSX Type S (all 4 of them)
Evolution Meeting: Mitsubishi Lancer Evolution IV GSR
Beetle Cup: 4 cars, Volkswagen New Beetle RSi (all 4 of them)
Grand Turismo World Championship: 4 cars, Toyota Celica GT-Four, Mitsubishi Lancer Evolution VI GSR, Mazda Miata, Nissan Skyline GTR V-spec II
Get all Golds: Mitsubishi Lancer Evolution V GSR

Amateur League:

Japanese Championship: 4 cars, Mazda RX-7 Type RZ, Mitsubishi Evolution IV GSR, FTO GP Version R, Subaru Impreza WRX Sti Version VI Wagon
American Championship: 4 cars, Subaru Impreza Sedan WRX STi Version VI, Chevy Camaro Race Car, Audi TT 1.8T Quattro, Mazda RX7 Type RS
European Championship: 4 cars, Lotus Elise 190, Nissan GTR V-Spec, Gillet Vertigo Race Car, Mini Cooper 1.3i
Gran Turismo World Championship: 4 cars, Nissan C-West Razo Silvia, Nissan Z Concept car, Toyota GT1 Road Car, Mazda RX8
Deutsche Tourenwagen Challenge: 4 cars, Volkswagen Lupo Cup Car, Volkswagen Beetle Cup Racer, Astra Touring Car, RUF 3400S
FF Challenge: Celica TRD Sports M
FR Challenge: Toyota Sprinter Trueno GT-Apex Shigeno Version
MR Challenge: Honda NSX Type S Zero
4WD Challenge: Mitsubishi Lancer Evolution VII GSR
Stars & Stripes Grand Championship: Spoon Sports S2000 Race Car
Boxer Spirit: Subaru Legacy Blitzer B4
80s Sports Car Cup: Nismo Skyline GT-R S-tune
NA Race of NA Sports: Mazda RX8
Turbo - Race of Turbo Sports: Mine's Lancer Evolution VI GSR
Gran Turismo All-Stars: 4 cars, Mine's GT-R-N1 V-spec, Raybrig NSX , Ford GT40, Nismo GT-R R-Tune
All Japanese GT Championship: 4 cars, Honda Arta NSX JGTC, Denso Supra Race Car, Calsonic Skyline, Loctite Zexel GT-R
Tourist Trophy: 4 cars, Audi S4 (all 4 of them)
Race of Red Emblem: Nismo 400R
Legend of Silver Arrow: Mercedes Benz CLK Touring Car (D2 AMG Mercedes)
Altezza Championship Race: 4 cars, Tom's X540 Chaser, Toyota Vitz RS 1.5, Toyota Altezza LM Race Car
Type R Meeting: 4 cars, Honda NSX Type-R, Spoon Sports S2000, Mugen S2000, Honda S2000
Evolution Meeting: Mitsubishi Lancer Evolution VI Rally Car
Dream Car Championship: 4 cars, Mitsubishi FTO LM Race Car, Mazda RX7 LM Race Car, Honda S2000 LM Race Car, Subaru Impreza LM Race Car
Get all Golds: Team ORECA Dodge Viper GTSR

Professional League:

British GT Car Cup: Aston Martin Vanquish
Gran Turismo World Championship: 4 cars, Ford GT40 Race Car, Opel Calibra Touring Car, Nissan R390 GT1 Road Car, Jaguar XJ220 Race Car
FF Challenge: Spoon Sports Civic Type R
FR Challenge: Nismo GT-R LM Road Car
MR Challenge: Tommy Kaira ZZII
4WD Challenge: Mitsubishi Lancer Evolution VII Rally Car Prototype
Spider & Roadster Championship: Shelby Cobra
Boxer Spirit: RUF RGT
Race of N/A Sports: Pagani Zonda C12S
Race of Turbo Sports: RUF CTR 2
Gran Turismo All Stars: 4 cars, Nissan R390 GT1 LM Race Car, Dodge Viper GTS-R Concept, Toyota GT-One Race Car, Subaru Impreza Sedan WRX STi
All Japan GT Championship: 4 cars, Nismo Skyline GT-R S-tune, Castrol Mugen NSX, Toyota MR-S Autobacs Apex, Pagani Zonda Race Car
Italian Avant Garde: Pagani Zonda Race Car
Race of Red Emblem: Calsonic Skyline
Vitz Race: 4 cars, Toyota Vitz RS 1.5, Toyota Altezza LM Race Car, Tom's Castrol Supra, Toyota Supra RZ
Elise Trophy: 4 cars, Lotus Elise 190 (all 4 of them)
Clio Trophy: 4 cars, Volkswagen Beetle Cup Racer (all 4 of them)
TVR Tuscan Challenge: 4 cars, TVR Speed 12, TVR Griffith 500 (rest 3 of them)
Dream Car Championship: 4 cars, Toyota GT1 Race Car, Panoz Esperante GTR, FTO LM Race Car, F090/s
Polyphony Digital Cup: 4 cars, Suzuki Escudo Pike's Peak Edition, F094/S, Toyota GT-One Race Car, TVR Speed 12
Like the Wind: Mazda 787B
Formula GT Championship Race: 4 cars, F686/M, F687/S, F688/S, F090/S
Get all Golds: F686/M

Rally:

Tahiti Challenge of Rally: Toyota Celica Rally Car
Tahiti Maze: Ford Escort Rally Car
Smokey Mountain Rally: Ford Focus Rally Car
Swiss Alps: Peugeot 206 Rally Car
Tahiti Challenge of Rally II: Toyota Corolla Rally Car
Tahiti Maze II: Impreza Rally Car
Smokey Mountain II: Mitsubishi Lancer Evolution VI Rally Car
Swiss Alps II: Mitsubishi Lancer Evolution VII Rally Car Prototype
Super Special Route 5 Wet: Citroen Xsara Rally Car
Super Special Route 5 Wet II: Subaru Impreza Rally Car Prototype
Get all Golds: Suzuki Escudo Pikes Peak Version

Endurance:

Grand Valley 300: 4 cars, F090/S, Subaru Impreza LM Edition, Nissan R390 GT1 Road Car, Spoon Sports S2000 Race Car
Seattle 100 Miles: 4 cars, F687/S, Nismo GT-R LM Road Car, Panoz Esperante GTR-1, Tommy Kaira ZZ II
Laguna Seca 200 Endurance: 4 cars, Calsonic Skyline, F686/M, F687/S, Toyota Altezza LM Race Car
Passage to Colosseo: 4 cars, Gillet Vertigo Race Car, Lancia Delta HF Integrale Rally Car, F688/S, Pagani Zonda Race Car
Trial Mountain Endurance: 4 cars, F094/H, Lister Storm V12 Race Car, Mine's Skyline GT-R N1 V-spec, Honda S2000 LM Race Car
Special Stage Route 11: 4 cars, Toyota MR-S Autobacs Apex, Arta NSX, F687/S, Nissan C-West Razo Silvia
Roadster Endurance: 4 cars, F688/S, Mazda MX-5 Miata, Mazda MX-5 Miata 1.8 RS, Mazda Miata VR Limited A
Tokyo Route 246: 4 cars, F094/H, Mazda RX7 LM Race Car, Nissan C-West Razo Silvia, Toyota GT-One Road Car
Mistral 78 Laps: 4 cars, F686/M, Mitsubishi FTO LM Race Car, Jaguar XJ220 Road Car, Pagani Zonda Race Car
Super Speedway 150 Miles: 4 cars, Chevrolet Corvette C5-R, Tickford Falcon XR8 Race Car, F090/S, Clio Sport Race Car
Get all Golds: F094/H

License Tests:

All Golds on B License: Mazda Miata RS
All Golds on A License: Mazda RX8
All Golds on IB License: Nissan Z Concept Car
All Golds on IA License: Aston Martin Vanqish
All Golds on S License: Dodge Viper GTS-R Concept Car
All Golds on Rally License: Subaru Impreza Rally Car Prototype
50% Complete: Chevrolet Corvette C5R

Toyota Sprinter Trueno GT-Apex:
Complete the Sunday Cup with gold medals in all three races.

Mazda Eunos Roadster:
Complete the Cupman Cup with gold medals in all three races.

Mazda Roadster RS:
Complete the Spider and Roadster cups with gold medals in all races.