| Slight hesitation under full throttle?
Always get the immpression that my Cooper S is'nt as smooth under full throttle as it should be.. Kinda feels hesitant as the power is delivered, its fine on gentle acceleration but is noticable as you put your foot down more.
Its a 53 reg and has done 25k miles and was recently serviced at MINI.
Have been reading about fuel additives such as Millers/ redex/ greased lightning, as I wondered if this may clean the fuel system and improve it?
Have also read that BMW dont change the spark plugs until 40k so it may be worth a new set of plugs to iron out any problems here also?
Any input from people would be appreciated!
Tim | 
