The M5 entered its second generation in 1988, the straight-six power unit originally displacing 3.6 and subsequently 3.8 litres, with output increasing first to 315 and then to 340 hp.
Another change was that the engines no longer bore the “M” in their internal production code, but rather an “S” designating the origin of BMW Motorsport GmbH power units from now on. The customer is able to determine the difference at a glance, the letters “BMW” now being replaced by “M Power” on the valve cover, just as on the M3 four-cylinder.
The M5 was initially introduced as a saloon and then as a touring to create a unique synthesis of a thoroughbred sports car and a sophisticated transport vehicle. The BMW M5 Touring joined the range in 1992, successful sales of this five-door clearly confirming BMW’s concept to combine additional practical value with attractive design.
