Foto: Long, B., 'Porsche 928'. Dorchester, Veloce Publishing Limited, 2009, p.92, ISBN 978-1-903706-30-5.
Foto: Long, B., 'Porsche 928'. Dorchester, Veloce Publishing Limited, 2009, p.92, ISBN 978-1-903706-30-5.
Foto: carpictures.com, http://www.carpictures.com/vehicle/14KO6420216121/Porsche-928-Competition-Group-1982
Foto: carpictures.com, http://www.carpictures.com/vehicle/14KO6420216121/Porsche-928-Competition-Group-1982
Foto: carpictures.com, http://www.carpictures.com/vehicle/14KO6420216121/Porsche-928-Competition-Group-1982
Foto: carpictures.com, http://www.carpictures.com/vehicle/14KO6420216121/Porsche-928-Competition-Group-1982