Audi Australia has launched what has become the quickest accelerating diesel vehicle in Australia; the 2013 Audi A6 3.0 TDI Biturbo. The new twin-turbo diesel engine is also available in the 2013 Audi A7 Sportback 3.0 TDI Biturbo. Up until now the quickest diesel vehicle in Australia to cover 0-100km/h […]