The BMW S70B56 V12 engine is, despite its deviations from the philosophy of the M-GmbH, a true BMW Motorsport engine and hence the 850CSi is a true BMW M car. This is also reflected in the VIN of the CSi.
Ordinary BMW cars share the first three letters of the VIN – WBA – whereas the VIN´s for all cars manufactured under the reigns of the Motorsport division start withWBS beginnen.
This does not make the CSi an M8, at least not in the way the original M8 was devised. The CSi is a…