BMW E30 basic

The E30 automobile platform was the basis for the 1982 through 1991 BMW 3 Series entry-level luxury car / compact executive car. It was the successor of the BMW E21 in 1982 and was replaced by the BMW E36 in 1992. BMW continued to produce the cabriolet (convertible) E30 well into 1993. The M3 cabriolet was never officially offered for sale in North America; it was offered only for the European market.
The famous BMW M3 was first introduced on the E30 platform. A widened version of the E30 front suspension and the drivetrain from the E30 325i were used in the BMW Z1 roadster.
The E30 3-Series was produced in four body styles, a four door saloon, a two door coach, a five door estate (marketed as the "touring"), and a two door convertible. A Baur cabrio was also available. The 325ix was produced from 1988 to 1992, and featured all-wheel drive. It was available as a two-door (coach) or a four-door (sedan). The BMW M3 utilised a widened and heavily redesigned and restyled variation of the 2 door body style. The M3 shares few parts with other E30 models.
The primary distinctive feature of the BMW E30 models produced for the North American market in 1984-1987 are the elongated front/rear anodized aluminum bumpers. These bumpers are commonly known as "diving boards." In 1988, the anodized aluminum bumpers were shortened by revising the cover/fillers and shortening the shocks. In 1989 the anodized aluminum bumpers were finally replaced with shorter body-color plastic bumpers. The later model plastic bumper can fit onto a 1988 E30 without any modifications. This is not the case with E30s older than 88. The original chrome bumpers can be tucked in by draining the bumper shocks and compressing them to shorten the bumper. This, however, in the event of a collision, removes the ability of the shocks to absorb impacts and transfers the force directly to the chassis, which is more likely to cause serious damage even in low-speed scenarios.
The cars were powered by a range of inline 4 cylinder (BMW M10 , BMW M40 , & BMW M42) and inline 6 cylinder (BMW M20 and BMW M21) engines, with both petrol and diesel power. Power output for the engines ranges from 140 N·m (103 lbf·ft) torque for the 1.8 L (1766 cc) 4 cylinder engine, to 230 N·m (170 lbf·ft) torque from the 2.7 L (2693 cc) 6 cylinder petrol engine. The E30 BMW M3 was fitted with a 4 cylinder engine (BMW S14) producing more power, but less torque.