1972 BMW 3.0 CSL

In 1968, BMW returned to its six-cylinder power for its range-topping models, with the introduction of the 2500 and 2800 saloons. Also new was the 2800CS Coupe, the forerunner to the 3.0 CSL, although its running gear had more in common with the existing 2000C/CS. New improvements were introduced in 1971 with the similarly styled 3.0-liter CS. It brought with it four-wheel ventilated disc brakes and a 180 BHP engine.

To meet constrictive homologation regulations of the Group 2 racing class, BMW engineers developed a limited production run of 'homologation specials.' The trim was removed and thinner steel was used for the main body shell. Aluminum alloy was used for the doors, bonnet, and boot lid. Perspex was used for the side windows. These efforts resulted in a reduction of weight by 300 lbs. Initially, they were powered by an over-bored engine enabling it to compete in the over 3-liter class. The 3.0 CSL was powered by a 206 horsepower engine for road use and over 300 horsepower unit for the track. The engine's stroke was increased in 1973, upping the capacity to 3,153cc. From mid-season forward, the racing CSLs used the so-called 'Batmobile' aerodynamic package, developed at Stuttgart University. This package consisted of a front chin spoiler, large rear wing and various other modifications. The boot was illegal for road use in Germany and left in the boot for final installation after purchase.

Toine Hezemans captured the 1973 European Touring Car Championship for BMW with a 3.0 CSL. Dieter Quester and co-driver Hezemans captured a class win at LeMans that year. Ford won in 1975 but from 1975 onwards the BMW 'Batmobiles' won five consecutive European Touring Car Championships.

by Daniel Vaughan | Dec 2019