We plan to replace our V50 petrol engine 1.8 l with another V50 in the autumn. In view of the lower fuel consumption, a diesel engine (109 or 136 hp) would be an interesting option. In this context, I would like to know more about the following points: !) can a V50 diesel engine be driven as fast as a petrol engine? 2) The problem of turbocharger failure: does this occur more frequently with diesel engines? Can the problem possibly narrow down to certain years of construction? 3) Do the diesel engines have timing belts or chains? 4) Does the particulate filter have to be replaced regularly? If yes: costs for this? Thanks already fiete