[Okiesnake]

Don't know all the details of the cobra on the track but learning how to heal and toe downshift while braking is especially important in a high powered car. If you don't blip the trottle just before letting out the clutch the engine is going to instantly and excessively brake the rear wheels and unbalance the car. You can get away with not bliping the trottle on braking downshifts on the street but on the track at speed - just before going into a turn - will get you in trouble.