Complete one of the following series with the corresponding setting to enable a bonus car.

Porsche 959
Arcade Basic series (Novice)

Ferrari 512 TR
Arcade Pro series (Novice)

Bugatti EB110 GT
Normal Championship series (Novice)

Ferrari F-50
Arcade Basic series (Expert)

Dodge Viper GTS
Arcade Pro series (Expert)

McLaren F1
Normal Championship series (Expert)