Below is a list of Vehicles that you can purchase to use in your RP's.
Aston Martin DB9 - $1850 - Custom $600
Audi R8 - $2100 - Custom $1000
Mercedes SL500 - $1500 - Custom $500
Subaru Impreza WXR - $1400 - Custom $1150
Enzo - $2150 - Custom $950
Suzuki Pikes Peak - $2500 - Custom $2250
Mitsibushi Evo 8 - $1250 - Custom $500
Fiat Punto - $900 - Custom $300
Ford Ka - $1000 - Custom $250
Nissan Skyline - $1600 - Custom $400
Harley Davidson - $2000 - Custom $800
Hummer - $1650 - Custom $1500
Escolade - $1450 - Custom $1250
Bentley - $1700
Toyota Supra - $1500 - Custom $800
Toyota Yaris - $1050 - Custom $200
Mazda MX-5 - $850 - Custom $200
Suzuki Hayabusa - $1750 - Custom $1000
Ford Fiesta - $650 - Custom - $100
Ford Mustang - $1450 - Custom $1100
Firestorm - $1500 - Custom $1000