To easily earn money, purchase the Prototype Cycle and play in Bandit Chase mode. You should easily earn $30,000.

Unlock the following bonuses by performing the corresponding tasks in Arcade mode:

BONUS - HOW TO UNLOCK
Bandit Chase mode - Earn $40,000
Cadillac XLR 2004 - Earn $150,000
Chevrolet 1967 Corvette Stingray - Earn $80,000
Chevrolet Camaro 1969 - Earn $40,000
Concept WK-10 - Stop 100 racers in Cop Chase mode
Dodge Charger 1969 - Earn $135,000
Dodge Viper GTS-R - Earn $275,000
Dodge Viper SRT-10 - Earn $250,000
Ducati 999R - Earn $190,000
Ducati Monster S4R - Earn $100,000
Elimination mode - Earn $80,000
Grand Prix Racer - Win all Gold trophies in Evolution mode
Hummer H3 - Earn $175,000
Husqvarna SM610 - Earn $15,700
Infiniti FX45 - Earn $210,000
Infiniti G35 Coupe - Earn $50,000
Kawasaki VN2000 - Earn $30,000
Kawasaki ZX-10 R - Earn $315,000
Lamborghini Countach 1985 - Earn $450,000
Lamborghini Gallardo - Earn $375,000
Lamborghini LM002 - Earn $70,000
Lamborghini Miura 1973 - Earn $220,000
Lamborghini Murcielago - Earn $400,000
Lamborghini Murcielago R-GT - Earn $350,000
Lamborghini Murcielago Roadster - Earn $420,000
Low Ridin' Road Hog - Stop 15 racers in Cop Chase mode
Mercedes-Benz CL65 - Earn $300,000
Mercedes-Benz CLS Coupe - Earn $110,000
Mercedes-Benz SL65 - Earn $260,000
Mercedes-Benz SLR McLaren - Earn $290,000
Nissan 350Z - Earn $90,000
Nissan Skyline GTR - Earn $160,000
Nitrous Sand Bug - Stop 15 cops in Bandit Chase mode
Prototype 93-WT DD - Earn $650,000
Saleen Mustang Coupe - Earn $200,000
Saleen S7 Twin Turbo - Earn $330,000
Subaru Impreza WRX STi - Earn $120,000
T-Fin 609 Speedster - Earn $1,000,000
The Collector - Finish first in Elimination mode
Triumph Speed Triple - Earn $60,000
TVR Sagaris - Earn $235,000