When I got my F my dealer told me to wait till the first oil change which is 5K miles so I waited patiently till 5k miles A.K.A no excessive speeding or pushing the car very hard although later down I found out according to manual and everyone in this forum mentioned that its actually 681 miles or so...Well I have about 10900 miles on the F, and car is starting to feel a lot less stiff and more light and agile. The acceleration seems way better and throttle response is better that ever before. Does this mean the car is finally fully broken in? I don't know I'm a newb!
Long story short it all depends on the driver..