Caterhams and their kin respond well to motorbike power. The free-revving nature and unique torque characteristics of bike engines don't always translate well into usable power in road cars, but Sevens don't really weigh anything so it's a recipe for fun - you're basically building a four-wheeled motorcycle.
The Tiger Z100 turns this thinking up a notch, fitting two Kawasaki ZX-9R engines in tandem. The company's official line on this is 'we did it because we could', which is fair enough really. The ensuing performance is as devastating as you'd expect: 0-60mph in 3.1 seconds is enough to peel your eyelids back and wrap them around your ears. Accelerating like this in what's basically a carbon-fibre shoe is the preserve of the warped, and no mistake.
Photos taken by SuckSqueezeBangBlow at Motorsport at the Palace 2012.