most production cars don't have brakes that can hold it on the heavely braking of the track. last year i was on spa francorchamps with my bmw and a friend of my boss( if you know racing you probebly know him junior strouss drives indy lights in america now) was there with his latest model bmw m3 wich has pretty big and heavy brakes, but after a long stint with the m3 he came drove it in the pitbox and saw that the discs where letterly glowing hot so we jacked the car up and keep it spinning so the pads won't get stuck and then whe whant to take the brakes apart to give it a check and as soon as we loosend the caliper it just fel on the ground with the brakeline completly melted and broken.
So my point ff on a car of that price the brakes aren't up to the job of a trackday. you always have to have atleast pads but then also after a trackday the disc is rubbish
