This game is also known asSuper Automobili Lamborghini: Super Speed Race 64 in Japan and these secrets work on it as well.

Reversed Tracks
Beat championship mode under the “Novice” and “Expert” difficulty levels.

Bonus Cars
Complete one of the following series on the indicated setting to enable the corresponding 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)