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Audi aluminum-bodied A5 prototype sheds over 240 pounds

Filed under: Concept Cars , Coupe , Performance , Audi , Luxury Audi Aluminum A5 Coupe Prototype – Click above for a high-res image Audi is continuing the aluminum architecture tradition employed on the A8, R8 and TT with a new prototype of the A5 that sheds 242 pounds from the standard 2.0-liter model. The Aluminum A5 Prototype uses the steel-bodied production vehicle as its base, then incorporates the Audi Space Frame (ASF) technology and a carbon fiber hood and trunk to bring the curb weight down from 3,130 pounds to 2,888 pounds. Compared to the V6 model, the 208 hp turbocharged 2.0-liter model has a power-to-weight ratio of 159-hp per ton, while the V6 variant trumps it by only 11 hp per ton