2009 Audi RS6
Think of a nice, pleasant family-sized luxury car. Now give it enough power to light Sarah Palin's hometown. That's the 2009 Audi RS6 in a nutshell. This all-wheel-drive super-sedan boasts a V-10 engine that's boosted by twin turbochargers for a total of 580 horsepower. Thing is, it doesn't really look the part, since it differs only subtly from the less-insane versions of the Audi A6 upon which it is based. If you have a thirst for power, handling and speed – and have a big pile of money laying around – it's worth it.
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Photo Credit: Audi