Interesting article in the Sunday Times today on the Audi R8 Diesel (concept) - Audi have started allowing motoring journalists limited runs out surely meaning they are almost certain to go into production in the summer.
Link - http://driving.timesonline.co.uk/tol/life_and_style/driving/new_car_reviews/article3681828.ece
Link - http://driving.timesonline.co.uk/tol/life_and_style/driving/new_car_reviews/article3681828.ece