Volkswagen has for many years pushed clean-diesel TDI options to car buyers interested in better fuel-efficiency, with the Touareg Hybrid given a very small second stage. But for 2013 that's set to change with the introduction of the new 2013 Jetta Hybrid.

Slated to offer the highest mileage in the Jetta lineup—an EPA Combined 45 mpg—the Jetta Hybrid will pack a 150-horsepower, 1.4-liter turbocharged four-cylinder engine plus a 20-kW (27-hp) thin electric motor system mounted between the engine and transmission. Power is sent through the automaker's seven-speed DSG (dual-clutch) automated gearbox.

The 2013 VW Jetta Hybrid has a full hybrid system, just like the Toyota Prius family, meaning that it can be driven short distances, at relatively low speeds, on electric power alone. It can also coast, as high as 84 mph, with the gasoline engine temporarily shutting off.

Special wheels, LED running lamps, and a small lip spoiler are the only giveaways from the outside that this is a hybrid, although there are plenty of more subtle improvements that help with aerodynamics.

See our piece on the Jetta Hybrid's U.S. introduction for more information, as well as our coverage of the Detroit Auto Show here and over at MotorAuthority.