Four-door supercars line up, drag out their differences

The latest BMW M5, Jaguar XFR, Mercedes-Benz E63 AMG and Porsche Panamera S all have lots of things in common. They all have four doors, V8 engines underhood, hail from high-end European automakers known for luxury and performance and can all be had for a wee bit under $100,000.

But which one is fastest?

Well, that depends on how you're planning to measure speed. Do you mean top speed? The time it takes to circle a given race track? Or do you mean in a drag race, the quintessential way to compare a car's ability to accelerate in a straight line?

If that's the case, you'll find your answer in the video after the break. You'll see each of the aforementioned automobiles lined up against one another, racing flat-out over the distance of 1,000 meters.

Who wins? Hit the jump to find out.

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