Eight people squashed themselves into an Audi Quattro this week to highlight the importance of "going green" in the motoring industry.

The stunt marked the launch of EcoVelocity, the eco motor show which takes place at Battersea Power Station in September.

The Quattro, made famous by cult TV show Ashes to Ashes, would have to carry eight passengers to be as economical as today's leading green cars.

The show will feature the latest electric, hybrid and low CO2-emitting models.