I've had a couple of Diesels but dont get one thats not got a turbo as the power range at low revs will just about let you overtake a pedestrian.
I would rate Japanese diesels better than German at the moment.
BUT!! On the gas subject - why is the octane rating here so low?
I have a little boat, an awful lot cheaper than a nuclear powered submarine, and it has a fantastic device that goes "PING" when sea bed and boat bottom are a little too close. Maybe I should introduce this to the US military?