Highroll
Classic
MuscleBase 
Upgrades
While driving straight, Boost Trigger
Boost Strength +12
Top Speed +12%
When drifting near a wall, Early Accel +36%, Top Speed +14%, Mid Accel +12%, Handling +12%
Grip +15
Early Accel +6%, Mid Accel +6%, Top Speed +6%, Handling +6%