The E3 sedan was introduced in 1968 and initially the top of the line car was the 2800. Due to similarities between the cars, performance parts for the E9 coupe also were suitable for the sedan.
The engine upgrade kits from the coupe were also available for the sedan.
The changes made to the suspension are shorter and stiffer springs and gas-filled Bilstein dampers. The Alpina alloys are 14in high and 7in wide.
The brakes are uprated too, ventilated discs all around.