Quote Originally Posted by marquee View Post
Double clutch is for up shifting isn't it and rev matching is for downshifting and I don't use it not much point for road use
No, double clutch is for downshifting. The up shifting part is a fake statement from Fast and Furious.

Double clutch allows the input shaft in the gearbox to match speeds with the gear that you want to go into. Hence by double clutching, you can go from 4th gear to 1st gear smoothly assuming that you are still under the top speed for 1st gear.