Audi has released further details on the facelift of the the 2011 Audi TT, promising that the car will be more fuel efficient than its predecessor.

The new TT Coupe and Roadster models, which are two centimeters longer than the previous generations, are 14 percent more fuel efficient.

The 1.8 liter petrol version, the smallest in the range, consumes 6.4 liters of fuel per 100 km (36.75 US mpg) on average, which corresponds to 149 grams of CO2/km (239.79 g/mile). The turbocharged 2.0 liter diesel coupe consumes just 5.3 liters of fuel per 100 km (44.38 US mpg), which corresponds to only 139 grams of CO2/km (223.70 g/mile). The car is also available in a 2-liter gas model, which consumers 6.6 liters of fuel per 100 km (35.64 US mpg).

Audi says that with a manual transmission, the 2.0 liter gas TT can reach zero to 100 km/h (62.14 mph) in 6.1 seconds and hit a top speed of 245 km/h (152.24 mph).

The interior has also been overhauled, with new aluminium-look features and three new interior colors to choose from - nougat brown, titanium gray and garnet red. The electro hydraulic soft top model opens up in 12 seconds at speeds of up to 50 km/h.

The updated TT Coupe and the TT Roadster will debut on the European market this summer with only minimal changes in price. The 1.8 TFSI will be available from €30,200.

The new TT 2.0 goes on sale in the US in the first quarter of 2011, shortly after the high performance 2011 TTS which hits US showrooms in Fall 2010.

Ferrari is also set to debut a new model later this month, the Ferrari 599GTO. Dubbed Ferrari's "fastest road car," the 599 GTO will be launched at the Beijing auto show on April 23.

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