Audi is about to extend the just launched TT model range. Next in line is the roadster version and the TT-S for launch in 2007.

Audi is about to extend the just launched TT model range. Next in line is the roadster version and the TT-S for launch in 2007.

The roadster is currently being tested on the roads in Bavaria. It has a canvas power top as can be seen on the photos of the prototype.

The TT-S will be powered by a 2.0 litre 4 cyl. turbo engine coming from the Audi S3 delivering in the TT-S 280 HP. Its acceleration is estimated to rate around 0-100 km in 5.3 seconds.

Another variant, the last in line, is expected to come in 2008. It is a TT-RS powered by a 2.5 litre in-line 5-cylinder engine delivering 350 HP. It is going to come on the market as a rival against the Porsche Cayman S.


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SPY PHOTOS: Audi TT Roadster and S Version