Even with mine upgraded to 312mm up front with EBC discs and pads I still think they'd fade before the end of the first lap!
Then you're doing it wrong.
Look at the track videos. There are probably under 10 points where you need a serious haul on the anchors, that's under one a mile. They are as follows:
Aremburg
Adenauer Forst
Kallenhard
Wehrseifen
Bergwerk
Errrrm, that's it, actually.
Your brakes have aeons of time to cool between any large braking points. If you're cooking your brakes or tyres you really are doing it wrong.
mechanical wise the car is very good, as i do motorway journeys everyday, serviced regular and not running stupid power.
That means nothing. Get in the bay and have a good check around all of the hoses etc and make sure everything is in REALLY good nick - not perished or rusty.