In Grand Theft Auto: San Andreas for the PS2, Xbox, and Xbox 360, there are several special vehicles you can unlock the good old fashioned way if you’re not into using cheat codes.
BF Injection – Get first place at the Dirt Ring race at Las Venturas Stadium
Dune Buggy – Beat the score of 25 at the Dirt Ring
Freeway – Get all Bronze medals in Bike School
Hotknife – Get all Gold Medals in Driving School
Hotring Racer – Get first place in the8-Track Tournament
Jet Pack – Complete the Airstrip asset near Las Venturas
Monster Truck – Beat the 8-Track Tournament
NRG 500 – Get all gold medals in Bike School
Rustler – Get all Bronze medals in Pilot School
Stunt Plane – Get all Silver Medals in Pilot School
Super GT – Get all Bronze Medals in Driving school