| The 2010 Volkswagen Jetta offers a choice of | | | | estimates are 22/30 with the standard five-speed |
| three engines and six powertrain combinations, | | | | manual, 23/30 with the six-speed automatic. |
| each offering different pros and cons for buyers | | | | Neither figure is impressive, although they are |
| interested in fuel efficiency. | | | | comparable to the rival Mazda3 2.5 and Toyota |
| By far the most frugal Jetta is the TDI diesel, | | | | Corolla XRS. |
| introduced to the U.S. market last year. Powered | | | | The third option is the Jetta Wolfsburg Edition, |
| by Volkswagen's 140-horsepower, 2.0-liter | | | | with its 200-horsepower, 2.0-liter turbocharged |
| turbodiesel, the TDI earns impressive EPA city | | | | gas engine. The Wolfsburg Edition is slightly |
| highway ratings of 30/41 with the standard | | | | cheaper than the TDI, but substantially thirstier. |
| six-speed manual, 30/42 with the optional DSG | | | | With the six-speed manual, its EPA estimates are |
| semi-automatic transmission. Long-term testers | | | | only 21/31, although it matches the 2.5-liter |
| say those estimates are realistic: Edmunds' 2009 | | | | engine's 25-mpg combined rating. With the DSG |
| TDI averaged 34.4 mpg, very close to the | | | | semi-automatic, the Wolfsburg Edition's EPA |
| 34-mpg EPA combined rating. Unfortunately, the | | | | ratings rise to 24/32, actually better than the |
| diesel's frugality isn't free: it costs over $2,000 | | | | less-powerful 2.5. However, Volkswagen |
| more than the 2.5-liter engine. While it has the | | | | recommends premium gasoline for the Wolfsburg |
| smallest carbon footprint of any Jetta, it also | | | | Edition, while the 2.5 uses regular fuel. Long-term |
| emits more smog-producing emissions than either | | | | tests also suggest that the turbo engine's EPA |
| of the other engines. | | | | estimates are optimistic. Real-world mileage can |
| The cheapest choice is the Jetta's base engine, a | | | | drop well under 20 mpg in urban commuting. |
| 2.5-liter five with 170 horsepower. Its EPA | | | | |