524td (1985-1986), M5 (1986-1987) and 535is (1987-1988). The launch model was the 528e in 1982, followed by the 533i. The optional automatic transmission was initially a 3-speed (a 4-speed automatic was available in Europe at the time), with a 4-speed automatic transmission becoming optional in 1983. From 1985, all North American models had ABS Brakes as standard. The North American E28 models had larger bumpers (designed to withstand a collision without body damage), which increased the overall length by . The 528i, 533i and 535i were sold with a catalytic converter in the United States. Instead of importing the M535i, BMW of North America created the 535is. This model is based on a 535i, plus front and rear spoilers, sport suspension and sport seats. Production of North American market M5 models began in late 1986 (two years after M5 production began for European markets), and it was only produced for twelve months as 1988 model year car. North American M5 models use the S38 engine instead of the M88/3. All North American M5 cars were painted Jet Black and most interiors were tan ("Natur") coloured leather. Production E28 production started in July 1981 and ended in December 1987. A total of 722,328 cars were built. The E28 was still sold in North America as a 1988 Model Year car after its E34 successor had been released in Europe in early 1988. A limited edition model was also sold in South Africa from mid-1987 to the end of 1988. References 5 Series (E28) Cars introduced in 1981 Cars discontinued in 1988