One of Audi’s main goals has always been to reduce fuel consumption and lower CO2 emissions while maintaining high performance.

For the next generation of the S4 and S5 models, Audi has already established a few benchmarks to be achieved, with the focus on reducing fuel consumption while maintaining the performance at the highest levels possible.

Audi S4

Audi is developing a new turbocharged 4-cylinder engine that will be an intermediate stage between the new 3.0-litre supercharged V6 TFSI and the former 4.2-litre V8 engines, with 20% more fuel efficiency and similar performance to the V8 engine.

Audi S5

Another area Audi considers of high importance is weight reduction, and Audi’s goal is to reduce the weight of its next generation of cars by 30%.

The 2009 Geneva Auto Show is at full blast in Switzerland and an in its centenary year Audi is drawing most of the attention to its booth with four new production models on show.

Audi A4 Allroad

Designed to handle just any type of surface the Audi A4 Allroad has permanent all-wheel drive, increased ground clearance and three engines to choose from: a 208hp 2-litre TFSI petrol engine, a 170hp 2.0 TDI and a 237hp 3-litre V6 diesel engine.

The Audi A4’s allroad crisp lines, curved surfaces and striking details give this Audi model a sporty elegance as well as a respectful look.

The new Audi A4 allroad quattro will go on sale in the UK this summer with prices starting at £29,500.

Audi A5 Cabriolet and Audi S5 cabriolet

Combining a sporty character and the pleasure of open-top-driving the cabriolet versions of the Audi A5 and S5 will sure be a success amongst Audi fans all over the world.

Five engines are available three petrol and two diesel ranging from 180hp to 265hp, all with direct fuel injection with three types of gearbox available and Audi’s full range of add-ons.

Audi TT RS and Audi TT RS Roadster

Probably the most anticipated Audi model on display at this year’s Geneva Auto show is the Audi TT RS.

The Audi TTRS has a lightweight aluminium body, quattro all-wheel-drive powered by a 2.5 litre turbocharged 5 cylinder engine capable of delivering over 300hp, 331 lb-ft, a top speed of 155mph and acceleration from 0-62 mph under 5 seconds.

Add to that all the high-end tech of the Audi RS models and you’ll understand why the new Audi TTRS is the one of the starts of this year’s Geneva Auto Show.