Frankfurt 2007: AC Schnitzer BMW M5 Touring

1,1 HP per litre? This figure in relation to a high performance sports car such as the new ACS5 Sport Touring based on the BMW M5 certainly doesn't refer to the conventional ratio of capacity to power. Instead: 500 litres luggage space meet 552 red-hot HP (406 kW). Plenty of room in every respect for incomparable driving pleasure on one hand, and a hang-glider, surfboard or mountain bike o...