1970 BMW 2500
6-cyl. 2494cc/170hp 2x2bbl Zenith
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With an experienced team and a lot of data.
The 1600 and 2002 were flying out of showrooms by 1968 and BMW set its sights on the upper end of the market. The source of inspiration came once again from von Falkenhausen, who added two more cylinders to the 2002’s SOHC four-cylinder engine for a silky smooth, twin carburetor six-cylinder.
The result was two models, the 170 bhp 2500, and the 192 bhp 2800. The engine was canted over 30 degrees to fit under the elegant sedan’s low hood, and both engines used a seven-main bearing crank. The two engines were notable for having trispherical turbulence bowl combustion chambers which were so efficient that they eliminated the need for air pumps or exhaust gas recirculators.
The 2500 and 2800 had McPherson struts up front, but angled back for a better ride and improved anti-dive capability. The rear featured the same trailing arm independent suspension as the 2002, again better angled for an improved ride. The sedans were sold in two levels of trim in Europe, with the 2500 as a base model and the 2800 loaded with options, including Boge Nivomat self-leveling suspension. Both models had dual circuit disc brakes all round and a nifty toolkit in the trunk lid.
Importer Max Hoffman decided that price was an important factor (he’d been right with the bare-bones Porsche Speedster in the 1950s) and so the Bavaria sedan was introduced in 1971. It was essentially the 2800 without a lot of its fancy features and a base price of $4,987. Not many people wanted a base car, however, and by the time most were out the door with air-conditioning, power steering, tinted glass and a nice Blaupunkt stero, the prices was over $6,000. The later 3-liter model got fuel injection and power rose to 200 bhp.
BMW had carved a sizeable niche out of the Mercedes-Benz market by 1977, with 222,001 examples of the 2500 and 2800 models delivered, and the model had also spun off the superb 2800CS and 3.0CS coupes, which remain classics. The Bavaria sedan evolved into the 3.0 sedan in 1975 and was replaced by the even bigger 733i in 1977.
Aside from being somewhat finicky mechanically, rust was the Bavaria’s biggest enemy and rear shock tower integrity is critical. Significant rust there can be terminal. A side note of some interest is that the “Bavaria” name was never used for the 2500 and 2800 sedans in Europe, but Germans were so proud of it that many US-model Bavaria badges were fitted to cars over there.