The Audi A2 signals the advent of a new model line in the compact car class. The vehicle concept is based on the Audi Space Frame (ASF). The use of a body with a basic structure made entirely of aluminium, in this particular case for a compact car, is unique in volume production. Production methods which permit a high degree of automation had to be developed for this model. As part of an overall technical concept, the Audi Space Frame brings about a significant reduction in the vehicle's weight. The Audi Space Frame moreover provides the ideal basis for an outstanding package and an appropriate safety concept. The car's low aerodynamic drag is made possible by the low cD value. The low weight of the A2 combined with the high efficient spark-ignition and Diesel engines is resulting in an very agile and fuel-economic car.