The menacing Mercedes-Benz C63 AMG coupe is slowly making its way into dealerships, ready to eat the souls of any driver willing to tame the 451-horsepower super coupe. It's a hardcore two-door with a naturally aspirated V8 powerplant under the hood, and in our recent stint behind the wheel, we fell head-over-heels in love.

But the C63 isn't the only hot super coupe on the block. The Audi RS5 – a model that will soon be available Stateside – offers 444 horsepower but puts that grunt to the ground via all-wheel drive. It's not as outright vicious as the Merc, but it's certainly capable of standing toe-to-toe, particularly on wet tarmac.

That in mind, the folks at Fifth Gear took these two coupes to the Cadwell Park circuit in Lincolnshire, Great Britain to see which German could pull off the quickest lap time. We won't spoil it for you, so follow the jump and watch Tiff Needell and company have a bit of high-horsepower fun.

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