I use the pits to increase the challenge if I am totally dominating a multi-lap race. It gets kind of boring if you are way out in front so I have to do different things to keep it interesting. Not that it happens very often, especially now that I have all the tracks up to "S" class, but occasionally I will be way ahead and use the pit stop to make it challenging, or I will pretend that my gearbox has problems and can no longer use 1st and 2nd gear.
Does anyone else do this, or am I the only one?