I know there is a bit of variation between these sort of places, but you have to ask yourself, what are you expecting? For around £100 a car, are you honestly expecting them to let you rip around, spinning wheels and on the limit in a car that cost over £100k, when they've got no idea how much talent/skill you have behind the wheel? If I had a Ferrari, I probably wouldn't let 99% of people on this forum drive it for £1000, let alone £100