Board Thread:Game Discussion/@comment-27798333-20160816084844/@comment-27048832-20160817002328

You'll be surprised how much difference it will make

That extra 2mph is not the only change that will happen to the car, a 0-60 improvement will take place, and on a circuit like Silverstone with some long straights it will make a difference

Try it an dcloud restore afterwards just to see for yourself what one single upgrade can do :)