Hi all - I recently bought a 2010 California. During the last 3.000 km's I find the acceleration to be more and more jerky. There is no problem with hard acceleration, but smooth acceleration around 2-3.000 RPM (especially in auto - and even more with cold engine) results in jerky acceleration where it seems like the car has sporadic fuel flow or ignition. When the car is warm, the problem is still there, but not as obvious. When cruising in 7th gear at appx. 2.500 RPM, I can feel a slight "jerkiness"/hesitation/shivering from the engine. Basically it is not really a 100% smooth ride. The car was serviced about a week ago at Ferrari who tried to replace the spark plugs without any noticeable effect although the old spark plugs were quite black/dirty. The ignition coils were tested together with the fuel rail and everything checked out OK. Any suggestions? I tried to search the web and this forum but didn't come up with anything.