From BMW Tech

The M535i is an automobile in the BMW 5 Series automobile made by BMW. It is featuring a 3.5L engine with special styling such as Motorsport front and rear spoilers, Recaro-brand sport seats, a close-ratio transmission and limited-slip differential, larger brakes, and other styling cues such as Motorsport striping down the sides of the car and on the front airdam, was available between 1979 and 1981 with 1410 cars produced.

Models

The following models were produced in this series:

Model	Engine	Power				Torque			Built
		PS	kW	hp	at rpm	N·m	lbf·ft	at rpm
M535i	3453 cc I-6	Convert/PS	5200	Convert/N.m	4000	1979−1981