KTM X-Bow vs Lotus Exige

What's the difference?

I know what you're thinking: "How is this thing legal?" And to be honest, somewhere between a rock flung from the tyre of a passing car colliding with my forehead like it had been fired from a pistol, and the pouring rain lashing my exposed face like a damp cat-o'-nine-tails, I'd begun wondering the same thing.

The answer is barely. The product of a years-long fight to overcome our import rules, this madhouse KTM X-Bow R is now finally free to roam Australian roads and racetracks - though, with sales capped at 25 per year to comply with the Specialist Enthusiast Vehicle Scheme.

The price? A slightly eye-watering $169,990. That's quite a lot, and places the X-Bow R miles above its closest lightweight, carbon fibre-tubbed competitor, the Alfa Romeo 4C ($89,000).

But then, the KTM X-Bow R is unlike anything else on the road today. Part super bike, part open-wheeler and all mobile madness, the 'Crossbow' is fast, furious and completely insane.

Expect no doors, no windscreen, no roof. On-board entertainment is limited to the turbo whistling behind your head, the car's standard safety list is as barren as the interior and the climate control is dependent on the temperature of the wind that's smashing into your exposed face.

And we couldn't wait to take it for a spin.

Driving naked is ill-advised, and possibly illegal, but taking a spin in the Lotus Exige 350 Sport is as close as you'd ever want to get. It's not so much that you feel you've left your clothes at home, but that the car has shed its accoutrements, and indeed its very flesh, leaving you with a kind of skeletal vehicle; just bare bones and muscle.

What this punishingly hard and fiercely focused machine does to your bones and flesh is best described as extreme chiropractry - in particular the stress of ingress and egress - but fortunately it makes up for the moans, bangs and bruises by fizzing your adrenal glands in a big way.

The question is whether the fun is worth the suffering, and the  $138,782.85 price tag.