If the 850CSi was developed by M, why is it not badged as an “M8”?
BMW Motorsport did develop a prototype 8 Series with a lightweight body and a 550-hp 48-valve V12 engine that was known as the M8. However, BMW pulled the plug on the M8 and stated, “We’re just not interested in putting our name on cars like this anymore.” Instead, a more mild 8 Series with a 24-valve version of the V12 and normal steel body panels was chosen for production. This model was named 850CSi, perhaps because it was more closely related to the regular 850Ci coupe than the M8 prototype or perhaps because BMW did not wish to attach the M badge to a rather large and heavy grand touring coupe.
