There is an interesting interview in today's Motorsport News with Tim Sugdan, where he says that Mercedes Benz where going to enter the BTCC at the end of 1993.
The plan was to do the last 3 rounds of the 1993 season, before stepping up to a full prorgam in 1994. The project was top secret, but was not given the green light.
The car was going to be entered by Prodrive, but it was to be built by AMG in Germany and developed by Bernd Schneider.
It would have been interesting to see too who the Prodrive run Mercedes Benz's would have shapped up againest the Alfa's, BMW's etc of that era.