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bill gates

Bill Gates' Porsche 959 Coupe is one of only 230 in the world. It took a federal law signed by then-president Bill Clinton to allow the billionaire to drive the car because there was no crash-test rating. The price for such a car? $225,000 when new, they now go for well over $400,000. information via billionairecars.com and insideline.com.

Check Out the Cars Driven by the World's Richest People

With spots on Forbes' richest people list, these billionaires are going places. But it turns out their favorite modes of transportation are as varied as the ways they got all that money in the bank to begin with. One housewares entrepreneur drives a car that would sell for only about $1,500, while a certain software mogul could sell his car for $4.4 million. That's enough for four dream houses. Some of these vehicles are stars on their own, while others are only notable because of the billionaire behind the wheel. -- By Ashley Lutz