Speaking of new diesel cars: A High-Mileage Masterpiece
But like many new clean diesels, which meet even California’s tough emissions rules, the Jetta scoffs at its sticker. Hoarding fuel like a mobile Scrooge, I averaged a remarkable 48 m.p.g. over more than 150 miles of freeway driving. That’s the best mileage of any American-market car I’ve tested — gas, diesel or hybrid. I never knew that driving a steady 60 m.p.h. could be so gratifying, and I vowed to try it more often.
...
Among a wave of diesel cars and trucks — whose advanced emissions systems let them meet pollution rules in all 50 states -- the Jetta is the people’s choice, costing half as much as diesels from Audi, BMW and Mercedes-Benz. The VW is also the current champion of diesel economy. And its 4-cylinder engine achieves impressively low emissions without the need to carry several gallons of liquid urea, which helps to cleanse the emissions of larger diesel cars and S.U.V.’s.