revised front strut tubes with bolt on kingpins and swaybar mounted to strut tube, similar to the E28 5 Series.offset control arm bushings in the front suspension, for increased caster angle.
In countries where a catalytic converter was not fitted, the engine was rated at 147 kW (200 PS 197 hp).ĭifferences from the standard E30 models included: In countries where the M3 was sold with a catalytic converter, the initial versions were rated at 143 kW (195 PS 192 hp) and had a top speed of 235 km/h (146 mph). The E30 M3 used the BMW S14 four-cylinder engine, a high-revving DOHC design with a head closely based on that of the BMW S38 six-cylinder engine and the block from the BMW M10 four-cylinder engine with a 7,250 rpm redline.
BMW M3 DRIVERS
In 2007, Automobile Magazine included the E30 M3 in their "5 greatest drivers cars of all time" under their 25 Greatest Cars of All Time. In 2004, Sports Car International named the E30 M3 number six on the list of Top Sports Cars of the 1980s. A clutch-type limited-slip differential was standard equipment. North American models used a traditional shift pattern and had wider gear spacing with an overdriven fifth gear. European models were outfitted with a dogleg version with close ratios and a 1:1 ratio for fifth gear. The transmission was a Getrag 265 5-speed manual. The brake calipers, discs and master cylinder were unique to the M3 model. The only exterior body panels the regular 3 Series and the M3 shared were the bonnet, roof panel, sunroof. As a result, the M3 achieved a relatively low drag coefficient of C d=0.33 instead of C d=0.38 as in the standard 3 Series. In addition, the windscreen was glued in – not, as with the other E30 models, framed with a window rubber and piping. The changes over the rear of the car resulted in lower lift forces and better straight-line stability. For aerodynamic reasons, the rear window was flattened and the tailgate was made of light, glass-reinforced plastic raised by approximately 40 mm for better air flow. The front splitter, the rear apron, sill panels, as well as changes to the body in the area of the rear window ( C-pillar) and the bootlid improved the aerodynamics. The E30 M3 was mainly produced in the coupé body style, but limited volumes of convertibles were also produced. It was presented to the public at the 1985 Frankfurt Motor Show, and began production from March 1986 to June 1991.
The first BMW M3 was based on the E30 3 Series and was intended to be a homologation special to satisfy the Deutsche Tourenwagen Meisterschaft and Group A Touring rules, which required a total of 5,000 cars to be built.
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