Having already introduced the next generation 5-Series sedan, BMW and in particular, its M division, is now concentrating on the development of the flagship version of the series, the M5 that was caught here testing at the Nordschleife. The hotly anticipated M5 will debut about a year after the standard 5-Series that is due to make its first public appearance at the 2010 Geneva Show next March.
Until recently, it wasn't clear if the new M5 would continue to use the current model's exotic V10 powerplant or if the Bavarian's would go for the new 4.4-liter bi-turbo V8 that debuted in the X5M and X6M. However, BMW officials have now confirmed that the new M5 will indeed be equipped with the turbocharged V8.
more detail. ...