Coming to Geneva 2009; Audi TT RS 2.5 TFSI and Audi A5/ S5 Cabriolet. The 340hp TT RS makes its first official appearance after months of being chased by spy photographers.

The Audi TT RS will finally make its first official public appearance at the Geneva Motor Show this March. The TT RS is based on the TT but features several differences from standard TTs, not least of all its powerful new engine. Spotted testing a few times over the past 18 months or so, the TT RS will sit at the top of all TTs as the flagship model. In October 2008 WCF uncovered some details regarding the car through a leaked document. It uses a 2.5-litre turbocharged engine mated to a 6-speed gearbox. The engine makes 340hp (250kW) and 450Nm of torque and it's capable of hauling the car from 0 - 100km/h in just 4.5 seconds.

Another debut coming to Geneva 2009 is the A5/ S5 pair minus their respective roofs. The A5 and S5 Cabriolet will be shown for the first time in public months after spy pictures as well as official photos and details of both appeared. The A5 range consists of a number of engines such as the entry-level 1.8 TFSI producing 160hp (118kW) and a 2.7-litre TDI producing 190hp (140kW) and 400Nm.

Top of the pile is the S5 Cabrio now powered by a 3.0-litre supercharged V6 engine instead of the old 4.2-litre V8. It delivers 333hp (245kW) and 440Nm. Both A5 and S5 models use a canvass roof that opens in 15 seconds and closes in 17 seconds.

Lastly, the Audi A4 will also take a bow in Geneva, this time wearing allroad trim for both sedan and wagon versions for the first time. Like its big brother the A6 allroad, it's distinguished by a two-tone body kit with flared fenders and off-road style front and rear bumpers.  The allroad also benefits from an increased ride height for more purposeful all-weather driving conditions as well as medium level dirt roads.


Gallery: Audi to Unveil TT RS & A4 allroad in Geneva