This is the E-4 Coupé, an electric sports designed and built by Delta Motorsport, an engineering consultancy based at the Silverstone circuit in England - and the company, founded in 2005 by Simon Dowson and Nick Carpenter, is making some outrageous claims for the little two-seater's performance.

Thanks to their experience in motorsport and their focus on light weight and high-efficiency systems, Dowson says, they've been able to build an electric car with a range of 320km on a single charge, that can accelerate from 0-100 in less than five seconds and hit 240km/h.

Dowson said: "We got involved in designing hybrid and electric cars because they share many of the engineering challenges associated with motorsport - lightweight parts, aerodynamic efficiency and innovative packaging solutions.

“We've had to re-think road cars from scratch, looking at low-cost composite structures, system efficiencies and innovative seating."

The E-4 has a carbon composite chassis, designed by Delta and manufactured by KS Composites, that weighs only 85kg - about a third of a comparable steel structure that'll pass EU crash tests.