It's all gone a bit Wacky Races, hasn't it? No doubt you'll remember the DeltaWing: we saw it a couple of years back when Ben Bowlby talked us through his plans for a revolutionary new type of endurance racer at Le Mans.

DeltaWing Technologies, which is now in charge of the project, reckons it's a bit of kit that could be the answer to car world's growing problem of economy and emissions regulations. And all the benefits of a two(ish)-seat Le Mans racer have been transferred into this four-seat concept.

The narrow-track front means skinny tyres. The rear-engine design - currently targeted as a four-cylinder petrol or diesel developing between 85bhp to 110bhp - pushes the centre of gravity further back, producing less weight on the front axle. This is said to reduce rolling resistance and boost efficiency.

And performance: he wants his four-door wacky racer to accelerate from 0-60mph in six seconds, top out at 130mph and go 70 miles on every gallon of fuel. Ambitious.

Source : topgear.com