Michael Dell

Rank on Forbes.com 2006 World’s Billionaires List: 12
Net Worth: $17.1 billion
Vehicles Owned: 2004 Porsche Boxster; 2005 Hummer H2
Source: Texas Department of Transportation

The King of the personal computer, Michael Dell’s empire has allowed him to create a life of luxury. On sunny days in Austin, Texas, Dell can be seen sans top in his 2004 Porsche Boxster. But when the weather turns nasty, Dell enjoys the comfort and security of his latest toy: a 2005 Hummer H2 SUV.