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[赛车世界] BMW M3 Lightweight

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aatest 发表于 2018-7-7 17:30:15 | 显示全部楼层 |阅读模式 打印 上一主题 下一主题
 
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Beginning with the first E36 M3s delivered, BMW racers began pressuring BMW for a homologation version with which to compete against Porsche 911s in sports-car racing.

A homologation version is a car with special modifications from the factory that are allowed in racing as "production" cars, if enough cars are made and sold.









In 1995, BMW relented and offered the M3 Lightweight.

The major changes to the car were to lower the weight for racing.

The cars came without a radio (although the speakers were installed and the car pre-wired for the radio), air conditioning, leather seats, tool kit, or a sunroof.

The doors have aluminum skins. There is no underbonnet insulation blanket and the trunk only has carpet on the floor.

The under body insulation is thinner and there is special carpeting to lower weight. Overall the changes added up to 200 lb (91 kg) less than a standard M3.

The engines were specially selected from the assembly line for the highest power. The ECU had the top speed limiter removed.

The cars also came with a 3.23 rear axle ratio versus the standard 3.15 of the 1995 M3s. The cars were fitted with the shorter springs from the European M3 and used the same shocks as the standard M3, verified by having the same part number.
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aatest 发表于 2018-7-11 19:00:41 | 显示全部楼层
 
Cosmetically the M3 Lightweight came only in Alpine White with the Motorsports flag decals on the left front and right rear corners of the car. There is an aggressive wing on the trunk lid. There was some carbon fibre interior trim and the badges (side molding and dash) say "BMW Motorsports International." The seat fabric is black with a red pattern.

Upon completion they were sent to Prototype Technology Group (PTG) Racing in Virginia for final preparation, which included the front and rear Motorsport flag decals, and "trunk kit." In the trunk there was a different oil pan with special oil pump with dual pickups as used on the European M3 and later on the E46 M3, longer oil dipstick tube, front strut bar, lower x brace, spacer blocks to raise the rear wing, and an adjustable front splitter. Each new owner was given a 1-page legal document to sign stating that any installation of trunk items voided the new car warranty.
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