The Audi TT Coupe and Roadster models enter the 2011 model year with some modest exterior styling changes, a revised interior and the introduction of the firm’s new 2.0-liter TFSI gasoline engine with 211 ponies on the entry-level versions.

The new 2.0 TFSI delivers 211HP and 258 lb-ft, or 11-horsepower and 51 lb-ft of torque more than its 2.0-liter predecessor. With the six-speed manual, the two-liter engine accelerates the Coupe from zero to 100 km/h (62mph) in 6.1 seconds on its way to a top speed of 245 km/h or 152mph.

Optionally, Audi also offers the 2.0 TFSI with a six-speed S tronic dual clutch gearbox and quattro permanent all-wheel drive. The spring from zero to 100 km/h takes only 5.6 s in this configuration.

According to the Ingolstadt automaker, the 2011 TT 2.0 TFSI consumes 6.6 liters of fuel per 100 km (35.6mpg US) in the European test cycle with CO2 emissions of 154 g/km (247.8 g/mile).

There are no mechanical changes for the 272HP TTS and the 340HP five-cylinder TT RS models. However, Audi said that starting this fall, the TT RS will be offered optionally with a newly developed version of the S tronic dual clutch transmission.

The most obvious styling updates on the outside concern the front of the TT models that gain a restyled front bumper with larger inlets, a revised single-frame grille in high-gloss black, and twelve white LEDs arranged in a straight line at the lower edge of the headlights that serve as the daytime running lights.

The faintly tweaked tail lights, larger tail pipes and the slightly larger flat black diffuser complete the cosmetic changes on the 2.0 TFSI models.

The upgrades to the TT Coupe and the TT Roadster have added two centimeters (0.79 in) to both cars, which now measure 4,187 millimeters (13.74 ft) in length.

Audi also added four new metallic colors to the TT range including Scuba Blue, Oolong Gray, Volcano Red and Dakota Gray.

As for the more powerful TTS Coupe and Roadster models, both benefit from a new grille combined with chrome air inlets, while the flagship TT RS remains unchanged.

Inside, changes are limited to the new aluminum-look trim on the steering wheel, the center console and in the door liner, the brushed gray aluminum strip above the glove box door and the availability of new interior colors on the TT and TTS models.

In the U.S., the 2011 TTS will hit showrooms this fall, while the TT 2.0 TFSI quattro goes on sale in the first quarter of 2011. The facelifted TT will have its world premiere at the Leipzig Auto Show in Germany later this month.