Engler

Take one dynamically unstable, highly dangerous vehicle platform – the venerable quad bike – and juice it up with more than a thousand horsepower, and you've got an absolute widowmaker. But is it the ultimate widowmaker? Let's assess the competition.

Salon Privé is best known for its globally recognized Concours d’Elégance, but over the 15 years since it began, it has grown into a week of automotive celebration that encompasses important car and luxury product launches and an upmarket lawn party.

There are supercars and superbikes ... Why not a superquad? Slovakia's Victor Engler couldn't think of a good reason, so he went and built this 850 horsepower V10 monster, which he says tops out at a ludicrous 350 km/h, or 217 mph.