50 Cent came from nothing, and he has amassed a massive net worth by being a smart businessman. After he sold his stake in the Vitamin Water company for a reported $100 million dollars, he could purchase any car he wanted (via Auto Evolution).
50 Cent was always fond of fast cars and his Lamborghini MurciÃ©lago is perhaps the most notable example of this. The cars were one of the most popular sports cars of their era. He also owned a few other expensive sports cars.