The Mercedes-Benz SLR McLaren, a supercar lovechild born from the union of Mercedes and McLaren, revved into existence in 2003. Sporting a V8 engine capable of launching it to 60 mph in just 3.4 seconds, this speed demon is as quick as a cheetah on espresso. With brakes that could stop a freight train and a spoiler that does a little dance when you hit the brakes, this car is all about the drama. And if you fancy a breeze, the 722 S roadster lets you chat at 120 mph with the top down—hairdos be warned!