I've had that
			 
			 
			
		
		
		
			
			It happens occasionally in the C60S after it's been standing for some time. 
 
The solution is to get the whole thing warmed up then start it in first (in a safe area) and with the clutch pedal depressed powering on then backing off - it usually frees up quite readily.
		 
		
		
		
		
		
		
			
		
		
		
		
		
	
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