This bright yellow concept is the creation of Ralf Zenz, a German designer who envisages a world ultra-efficient performance motoring. His new concept will be unveiled at next month’s Geneva Motor Show, a full scale model stretching 4.2m and featuring a super slippery drag coefficient of just 0.21Cd.

Zenz says a production version of the car would be able to reach speeds as high as 230km/h but would consume less than 3.0L of fuel per 100km. This is because of the car’s aerodynamic shape, low 760kg kerb weight and efficient 140hp diesel engine. Zenz is working on an even more powerful version that can reach a top speed of 260km/h and remains just as economical, reports Auto Motor und Sport.

This won’t be just a stripped out shell. Zens plans to install adjustable seats and pedals, a fully tilting steering wheel and power steering, electric windows and mirrors, air-conditioning and CD stereo and navigation system. At the moment there are no confirmed production plans but if there’s enough interest at the upcoming Geneva Show we could soon see the Zenz sports car on sale.