e31 + acs = win goodoldvalves:BMW 850 CSi (1989) Unlike the “standard” 850, the CSi model came dir
e31 + acs = win goodoldvalves: BMW 850 CSi (1989) Unlike the “standard” 850, the CSi model came directly from the cancelled M8 prototype. The engine was a bigger 5.6 litre unit developing 375bhp, and had stiffer suspension compared to the standard model. -- source link
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