The BMW E28 is the second generation of BMW 5 Series executive cars, which was produced from 1981 to 1988 and replaced the E12 5 Series.
Pre-series production began in April 1981 and the car was introduced in the autumn that year.
The E28 has a self-supporting body that is welded to the body platform.
The passenger cell is a safety passenger cell with deformation elements both in the front and rear of the vehicle.
Unlike its E12 predecessor and E34 successor, the E28 has a rear-hinged bonnet.
The E28 was the first 5 Series produced with diesel engines (the 524d and 524td models) and with a petrol engined model specifically aimed at increased fuel economy (525e/528e model).
The four models available at the launch of the E28 were the 518, 520i, 525i and 528i, with the 518 using a straight-four petrol engine and the other three models using a straight-six petrol engine.
Over the course of the E28 model, the following models were added: the 524d and 524td using diesel engines, the 518i (a fuel-injected version of the 518), the 525e/528e as fuel-economy models, and the upper-specification 533i, 535i, M535i, and M5 models.
A liquid petroleum gas (LPG) option was introduced for some petrol engines in 1984.