Theft rate: 3.31 per thousand
Audi has been making the A8 since 1994, and in 1997 it gained prominence as the first mass-produced car with a lightweight aluminum chassis. Of the 1,810 produced in 2009, six were stolen.
“Like the high-performance Audi S8, Audi's A8 offers an excellent blend of luxury and performance (albeit to a lesser degree than the S8) at a great value all while providing all-wheel drive as standard-issue,” Brauer said. “So it's no wonder the A8 joins the S8 in making the cut for professional car thieves.”