Lookin' good. :thumbup:

Only thing I could suggest from the videos would be to try and make your turns a constant arc as much as possible. An easier way to do this would be to set your hands up ahead of time so that you can just keep ahold of the wheel in one place and avoid the hand-over-hand routine. Another thing that goes along with this is the term "slow hands." You seem to be getting around the course pretty darn well already, but with that much power and braking on tap, that means that the most grip you can keep on the tires, the better off you'll be, and that's only possible with smooth braking, smooth power delivery, and nice, smooth lines that will let you use as much power as your car can manage.