The Americans flex their eco-muscles

If it's not green, GM isn't interested. That seems to be the message at the American maker's stand this morning. Heading the line-up at this year's show is the firm's Opel Flexstreme concept. A fat-faced diesel hybrid with crescent shaped lamps at the front and rear-hinged doors in the back for easier access. The shape might not be to everyone's taste. But the car's green credentials will be. It can run for 55km on pure electricity, making it an emission free city car. The batteries are charged by the diesel engine. A nifty compartment in the back also stores Segway scooters - which might explain why I was forced to dodge two as I clamboured for the stand.

For more details and pictures on all the launches at Frankfurt, get your copy of the latest Auto Express, on sale at newsagents now!