Can a featherweight kit car really hope to beat a Mercedes-AMG E63 S with more than 600bhp on tap? The four-wheel drive Merc can manage 0-60mph in less than four seconds - but it does weigh about two tonnes. The tiny MK sportscar weighs about a quarter of that, and has two - yes, two - Kawasaki motorbike engines on its side. With a power to weight ratio of more than 670bhp per tonne, this is one r
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