gearbox while the optional 3 speed automatic was much scarcer. As the model years continued, this ratio evened out and then finally more cars had the automatic transmission. The exact percentage of manual and automatic gearbox cars for the entire production run is not known. The body, styled by Wolfgang Möbius under the guidance of Anatole Lapine, was mainly galvanized steel, but the doors, front wing, front fenders, and hood were made of aluminium to save weight. It had a substantial luggage area accessed via a large hatchback. Newly developed polyurethane elastic bumpers were integrated into the nose and tail and covered in body-coloured plastic; an unusual feature for the time that aided the car visually and reduced its drag. Another unusual feature was the pop-up headlamps which were based on the units found on the Lamborghini Miura and were integrated into the front wings. The 928 qualified as a 2+2, having two small seats in the rear. Both rear seats could be folded down to enlarge the luggage area, and both the front and rear seats had sun visors for occupants. The rear seats are small (due to the prominent transmission hump) and have very little leg room; they are only suitable for adults on very short trips or children. The 928 was also the first vehicle in which the instrument cluster moved along with the adjustable steering wheel in order to maintain maximum instrument visibility. The 928 included several other features such as the "Weissach Axle", a simple rear-wheel steering system that provides passive rear-wheel steering to increase stability while braking during a turn, and an unsleeved, silicon alloy engine block made of aluminium, which reduced weight and provided a highly durable cylinder bore. Porsche's design and development efforts paid off during the 1978 European Car of the Year, where the 928 won ahead of the BMW 7 Series, and the Ford Granada. The 928 is the only sports car so far to have won this competition, where the usual winners are mainstream hatchbacks and sedans/saloons from major European manufacturers. This is regarded as proof of how advanced the 928 was, compared to its contemporaries. Styling changes Styling was the same in both 1978 and 1979, with the body lacking both front and rear spoilers. From 1980 (1983 in North America) through 1986, front and rear spoilers were present on "S" models, rear spoilers being integrated into the