Telegraph.co.uk (Enlarge photo)

01/07/2008 12:02. But the former actor's green credentials may have been slightly dented after he was spotted driving the coupe in Los Angeles.

The vehicle, which does just 13 miles to the gallon, boasts a 6.1 litre V8 engine and can reach 60mph in under five seconds.

Schwarzenegger, 60, took the car for a spin with his sons Patrick, 14, and Christopher, 10, and his wife Maria Shriver, 52.

The model, an SRT8, is similar to The Dodge Charger made famous... // Telegraph.co.uk