Having spent two weeks in france this summer driving a new 2 liter turbo diesel Renault, I can vouch that the new generation diesels are something else. That little engine would really go. Made the nicest whine as turbo spun up. Power always there and with no feeling of stress on the car at all. No smoke and just enough diesel clatter to know the engine was different. 40 mpg or better the whole time.

If Mercedes can replicate that performance in a 3+ liter engine, look out.

Nic