Used Car Face Off: Battle Of The Massive German Q-Cars

Mercedes popularized the sleeper performance car, or Q-car, by sticking massive engines into innocuously styled sedans. The normal 300SEL of the 1960s was a nice luxury limo of its time, but it wasn't exactly a barnstormer. Stick a 6.3-liter V8 in it, like Mercedes did in 1967, and you have the stuff legends are made… » 10/07/12 3:00pm 10/07/12 3:00pm