Use the Nissan Silvia. Normally by default gear is third gear. When the challenge starts, accelerate. When start the cornering part, use the hand brake and shift to first gear. Note: To do this move, you must select "Manual Gear Transmission".
Unlock the following cars by beating the corresponding celebrities in all 3 of his race challenges:
CAR - CELEBRITY Audi 1.8T Quattro - Beat caballero in all 3 of his race challenges. Dodge Viper SRT-10 - Beat samuel hubinette in all 3 of his race challenges. Ford Mustang Fastback - Beat djibril cisse in all 3 of his race challenges. Ford Mustang GT '05 - Beat smudo in all 3 of his race challenges. Nissan Silvia S15 Spec-R - Beat phil morrison in all 3 of his race challenges. Nissan Skyline R32 GTS-t Type M - Beat tarzan yamada in all 3 of his race challenges. Toyota Corolla GT-S - Beat beau yates in all 3 of his race challenges.
To earn easy money, go to World Class League and spectate Air Trauma. Bet on Crystal, who's odds are 20:1. At the very beginning of the race, cheer(R1) for Crystal to give her a full nitrous bar. Boo(L1) any cars that are in front of her and have gained nitrous. Continue to do this until she has passed everyone.