E30 M3

Based on the 1986 E30 3-Series, the first M3 was introduced with a 2.3 L S14 engine, derived from the BMW M88 inline-6 block and the valve train and head architecture from BMWs M1 and later M6 inline-6 cylinder. One of the main reasons for production of the road car was to homologate the M3 for Group A Touring Car racing, as an answer to the "2.3-16V"-model of the Mercedes-Benz W201 which was introduced in 1983. A notable characteristic of the E30 M3 is its racing pedigree, campaigned by BMW as well as other racing teams including Prodrive and Schnitzer Motorsport.

The first version produced 195 hp (143 kW) (catalyzed model). Evolution models (not sold in North America) continued with 2.3 liters but adopted revised cam timing, increased compression along with the lack of a catalyst producing approximately 215 hp. Later the Sport Evolution model increased engine displacement to 2.5 L and produced 238 hp (175 kW). 786 cabriolets were also produced, all by hand in BMW's Garching plant, at the time the 215 hp example was the world's fastest four seater convertible.

The E30 M3 differed from the rest of the E30 line-up in many ways. The M3 was equipped with a revised stiffer and more aerodynamic body shell as well as "box flared" fenders to accommodate a wider track with wider and taller wheels and tires. The only body panels the standard model and the M3 shared were the hood and roof. It also had three times the caster angle of any other E30. The M3 shared larger wheel bearings and front brake calipers with the E28 5-Series.

To keep the car competitive in racing following homologation rules, homologation specials were produced. Homologation rules roughly stated that the race version must reflect the street car aerodynamically and in engine displacement; therefore, improved models were periodically released for the public. Special editions and homologation specials include: the Evo 1, Evo 2 and Sport Evolution some of which featured less weight, improved aerodynamics, taller front fender arches (Sport Evolution; to further facilitate 18 inch wheels in DTM), brake ducting, and more power.

Production of the original E30 M3 ended in 1991.

Having won more road races than any other model in history, the E30 M3 is considered by many to be the world's most successful road race car. Its wins include the Deutsche Tourenwagen Meisterschaft, European Touring Car Championship and even the one-off World Touring Car Championship title in 1987. The E30 M3 is also a multiple winner of Guia Race, 24 Hours Nürburgring and Spa 24 Hours.

In 2004, Sports Car International named this car number six on the list of Top Sports Cars of the 1980s.

Performance of BMWs M3 E30

• (2.3L-16v Ln4) - 143 kW/192 bhp 0-60 mph - 6.8 s. Top Speed: 143 mph (240 km/h)
• (2.5L-16v Ln4) - 175 kW/238 bhp 0-60 mph - 6.4 s. Top Speed: 154 mph (248 km/h)

Significant Victories for the M3 E30 in Auto Racing

Championships

• World Touring Car Championship; 1 title (1987)
• European Touring Car Championship; 2 titles (1987 and 1988)
• British Touring Car Championship; 2 titles (1988 and 1991)
• Italia Superturismo Championship; 4 titles (1987, 1989, 1990 and 1991)
• Deutsche Tourenwagen Meisterschaft; 2 titles (1987 and 1989)
• Australian Touring Car Championship; 1 title (1987)

Races

• Guia Race; 5 wins (1987, 1988, 1991, 1992 and 1993)
• 24 Hours Nürburgring; 4 wins (1989 – 1992)
• Spa 24 Hours; 4 wins (1987, 1988, 1990 and 1992)

Automotive reviews of BMWs M3 E30

The E30 M3 was met with rave reviews during its introduction and production. Even today, it is well-regarded within the automotive press and fondly remembered as one of the most exciting BMWs ever produced.

These are fabulous driver's cars ... to appreciate its beautifully balanced chassis, razor sharp steering, and sweet singin' twin-cam four

—Classic & Sports Car 2/2002

The M3 leaps through the corners like a cat, its feisty engine spinning and spitting until you snatch another gear or the rev limiter grabs it by the tail.

—Car and Driver 11/1987

So what do you get? Apart from a steep drop in your bank account, no more, and no less than a sports car par excellence

—Autoweek 8/1986

A Wolve in Wolves clothing

—Tiff Needle, Top Gear, BBC

Source: Wikipedia