| The 2010 Volkswagen Jetta offers a choice of three | | | | optional DSG semi-automatic transmission. Long-term |
| engines and six powertrain combinations, each offering | | | | testers say those estimates are realistic: Edmunds' |
| different pros and cons for buyers interested in fuel | | | | 2009 TDI averaged 34.4 mpg, very close to the |
| efficiency. | | | | 34-mpg EPA combined rating. Unfortunately, the |
| By far the most frugal Jetta is the TDI diesel, | | | | diesel's frugality isn't free: it costs over $2,000 more |
| introduced to the U.S. market last year. Powered by | | | | than the 2.5-liter engine. While it has the smallest |
| Volkswagen's 140-horsepower, 2.0-liter turbodiesel, the | | | | carbon footprint of any Jetta, it also emits more |
| TDI earns impressive EPA city/highway ratings of 30 | | | | smog-producing emissions than either of the other |
| 41 with the standard six-speed manual, 30/42 with the | | | | engines. |