Wiesmann have stated that even though the V10 has gone away, the MF5 will not. New versions will be produced utilizing an as-yet unannounced BMW engine. Our guess? The new 4.4-liter twin-turbocharged V8 that will be found in the next-generation BMW M5/M6. That would be a nice jump in power for the Wiesmann MF5, since the V10 was rated at 500 horsepower and the new twin-turbo V8 is rated closer to 560 hp.