defiant; I appreciate your keen remark, however, that is street getto racing and nothing to do with proper say Rally racing!! They use street cars with regular gearboxes and they do need to double clutch and rev match if they are to shift without destroying the gearbox.
Again, I assure you from self experience that proper racing does not involve double clutching. Then again, remember; if everything they say in movies is accurate and true, then we should all be RAMBOs!!!