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OAKVILLE BEAVER Wednesday, October 7, 2009 · 18 Aluminium A5 Coupe prototype shows the lighter side of Audi Metroland Newspapers Carguide Magazine A lightweight Audi A5 Coupe prototype has jettisoned over 100 kg by swapping steel for advanced aluminum and carbon fibre construction in the interest of fuel economy, emissions reduction and handling agility. The A5 project is the latest example of the pioneering work undertaken by the Vorsprung durch Technik brand to extend efficiency optimization measures well beyond the engine bay. Taking an existing steel-bodied production car as its basis, the A5 project car clearly demonstrates the benefits of the aluminum Audi Space Frame (ASF) concept with which Audi broke new ground 15 years ago, and which test beds of this kind help to evolve and improve. Use of the ASF principle reduces the weight of a car body by at least 40 per cent compared with conventional steel construction, and this shows in a kerb weight of 1,310kg for the aluminum A5 prototype, versus a total of 1,420kg for the equivalent steel-bodied series production model. Thanks to the significant weight loss, achieved by mounting aluminum and carbon fibre-reinforced plastics onto the aluminum Audi Space Frame (ASF), the A5 prototype is able to use a four-cylinder engine with its attendant economy and emissions advantages to deliver the performance of a higher output V6. The lightweight design of the test car not only enables a smaller engine to supplement a larger one with no impact on performance and gains in economy and emissions, but also has a knock-on effect on ancillaries such as the brakes and trans- Audi is continuing it's use of aluminum to cut weight in its vehicles with an A5 concept that is 100 kg lighter than the production car by using aluminum and carbon fibre instead of steel. mission, which can also be reduced in size and weight. It also enables the car to change direction noticeably more keenly and nimbly and, thanks to the reduction in unsprung weight, to ride with even more refinement. BUY LOCALLY SERVICE LOCALLY SUPPORT YOUR COMMUNITY Phone: (905) 825-8088 www.volvoofoakville.com SERVICE DEPARTMENT OPEN SATURDAYS