Corvette

Unlock all bonuses
Hold L + R and press Up, Left, Down, Right, Left, Right, Left, Right
in the main screen. After entered, you will hear: "Yeah!".

All levels:
At the options menu, select "Change Name", and type "XOPENSEZ"

Custom corvette mode:
Win a 1st place in every C3 career mode race

Circuit Endurance Mode:
Win a 1st place in every C4 career mode race

Route 66 Checkpoint Mode:
Win a 1st place in every C5 career mode race

Hot Lap Challenge Mode:
Win all the C2 career mode races to unlock this race mode.

Never lose a race:
If you lose a race or wrecked, press Star after choose "Restart Race"