Add this to my ‘I’ll believe it when I see it‘ list. The Volkswagen diesel hybrid XL1. 300 mpg.
The $60,000 XL1 is powered by an 800cc, two-cylinder turbodiesel powerplant (half a BlueMotion engine), producing 47bhp, supported by a 27bhp electric motor hat fuelled by lithium-ion batteries. The batteries can be charged from a domestic plug, allowing the car to travel 22 miles solely on electric power.
The good news? The XL1 weighs only 1,750 pounds. The bad news? VW will only make 250 models.