Type in the following codes in any menu of Need For Speed 2.

PIONEER = Upgrades all cars' acceleration

SLIP = Makes the track a little slippery

BUS = Drive a school bus

BUG = Drive the good old bug

SEMI = Drive a Semi-trailer truck

VOLVO = Drive a Volvo station wagon

LIMO = Drive a Limosine

COMMANCHE = Drive a Jeep Commanche pickup truck.