This 1991 BMW M5 is finished black over matching leather and is powered by a 3.5-liter inline-six paired with a five-speed manual transmission. The car was acquired by the current owner in 2001 and is equipped with a Dinan stage 1 suspension system, 17″ M-System wheels with turbine covers, tinted glass, a sunroof, an Alpine stereo with Bluetooth connectivity, power-adjustable seats, and dual-zone climate control.  Service performed since 2020 has included replacement of the timing chain tensioner,…