Tony Lewin, An icon emerges, in The Complete Book of BMW: Every Model in the World Since 1962, St. Paul, MN USA, Motorbooks International, 2004 [2004], p. 65, ISBN 0-7603-1951-0. URL consultato l'11 novembre 2013.
«Only two were buillt – but the lasting value to BMW was in the turbo engine it gave to the volume production 2002 series...»