I have been telling people that diesels are the future. It's a proven technology, diesel is cheaper to refine, can be found everywhere and provides incredible fuel economy. You also don't have to any fuel cells or special safety features to make a car a diesel, unlike a hydrogen/electric car. Few people know that Audi and BMW make diesels for the rest of the world. There was also talk of a Ford Focus diesel.

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1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member