mmm, lotsa room for improvement
Well in general, dont be afraid to push it!!! compared to real life, you wont get hurt in a crash
You seem to be very gentle with your driving. give it more throttel at exits, slam those brakes harder and brake later (you seem to brake way to early everywhere), and make those movements on the steering wheel a bit sharper.
Also use the whole track, you seem to go a lot of times 1 car width away from the track side, use the whole width of the track both on entry and exit.
And what's with the 3rd gear in the down/up chicane at the end?
You go full throttle, lift of a tiny bit before entry, make a harsh movement on the steering wheel, and FULL throttle on exit (you can back off a bit at the exit if you see that you will rine very wide). Don't cut in the middle, because you'll pick up sand with your right tires which will lead to a shitty braking in the corner afterwards.
Make those tires scream, I didnt hear a single noise from your tires while you were racing. No need to take it easy in a hotlap
Oh, and warm up those tires before racing. Do a few donuts, make a really harsh movement on the wheel so that the car will understeer, hence warming up the front tires as well. Just get them up to temperature, but dont make them all dark green. Just light green on the inside and the outside.
BTW, dunno which setup you use, hit me up on msn and i'll send it over.