Audi will produce a production car very similar to the lightweight A5 coupe prototype, Autocar can reveal.
By using an advanced aluminium and carbon fibre construction the 2.0-litre turbocharged coupe is 100kg lighter than the standard steel-bodied production version. However it weighs 240kg less than a standard A5 3.2 V6 quattro, the performance of which Audi says the lightweight coupe can match despite less power.
The lightweight concept is fitted with the 2.0-litre, 208bhp FSI engine, achieving a power-to-weight ratio of 159bhp per tonne. By comparison, the production A5 3.2 FSI V6 quattro with 261bhp, shades it only by a fraction at 170bhp per tonne.
The standard A5 is constructed around a conventional steel monocoque chassis, but this car is built around an aluminium spaceframe chassis, covered in aluminium panels. The boot and bonnet are made from carbonfibre-reinforced plastics.
Audi says it shows how its cars can be “downsized”, using smaller engines, brakes, wheels, tyres and fuel tanks, while still maintaining the same performance.