All the comments are fair but look at the troubles on petrol versions.Also consider running costs on the M-B.I1`me on my second TDS and this one has done 270k with no big troubles,the twin turbo set up will fit given a fabricated manifold and gives good low end torque, add an E39 6 speed box and you have a discrete tool capable of crossing Europe in a day @ 38mpg.Oh and because the engine is relatively old design it will run on anything faintly combustable.Find me a better car and I`ll buy it!