Motoring.co.uk calls the MINI Cooper D and SD "without question the most fun way to go green and keep some cash in your pocket" Due very low Co2 emissions and returns 74.3 mpg they are exempt from the London Congestion Charge. As the article points out,
The Mini Cooper D will accelerate to 60mph in 9.9 seconds before reaching a top speed of 121mph, 1mph more than the 1.6 petrol model. The latest Mini Cooper SD is capable of 0-62mph in just 8.1 seconds. The Mini Cooper SD is also available as Mini Clubman, Convertible and Countryman. Even the ALL4 all-wheel drive version of the latter, by far the heaviest and least efficient vehicle in the Mini range, manages 57.6mpg, 130g/km CO2, and 0-62 mph in 9.4 seconds and 121mph.This all begs the question. MINI, when are you bringing them to the States?