Which is faster? An Ariel Atom V8 track day toy, BMW HP4 superbike or a rallycross Citroen DS3 with 600bhp?
Here we have three completely different ways of going extremely quickly in a straight line. Time for a drag race then. So what are the contenders? There's the one-wheel drive BMW HP4 superbike, which arguably requires the most skill to extract speed from but has a ludicrous 757bhp/tonne power-to-weight ratio...
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