2011 Volkswagen Jetta TDI: July 2011

If the Volkswagen Jetta TDI featured in our Battle Of The Eco Compact Cars comparison test looked familiar, that's because it's our long-term tester. In fact, you might say that the arrival of our Jetta TDI is what sparked the idea for the comparison test, especially after Editor-in-Chief John Neff took the car on a few long highway trips and recorded well over 50 miles per gallon. And while the Jetta – spoiler alert! – may not have won our eco-warrior comparison, its 2.0-liter diesel engine continues to impress us with its effortless efficiency.Just how effortless? We enthusiasts tend not to be the most efficient drivers, and yet our recorded average fuel economy over the past 8,500 miles is 43.4 miles per gallon. That's right, our average combined number is 1.4 mpg higher than the EPA's highway rating for the Jetta TDI. In fact, we've recorded as high as 53.5 mpg on the highway, and even under the most spirited driving, the lowest number recorded in our logbook so far is just 36.7 mpg. - Autoblog