The Mercedes SLS AMG is already a fast, powerful car but this version takes things a bit farther. It's lighter and -- with 622 horsepower from its 6.3-liter V8 -- even quicker to take off. It can get from a stop to 60 miles an hour in just 3.5 seconds, according to Mercedes. It will go on sale in the summer.
An association with actor McQueen can multiply the value of a machine.