What do the top 3 billionaires in America drive?

We’re having a little fun on the MoneyTalk Blog today. I was curious about what some of America’s richest drive. I wasn’t looking at folks like the Walton kids or people that inherited their wealth, but those that started like you and me, with nothing. I found an interesting tidbit about the top 3 wealthiest Americans: Bill Gates, Warren Buffet, Paul Allen.