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How can anyone do things like this.
I hope the car is not too badly damaged and really hope they find the moron who did it. Apart form the fact that its beyond reasonable understanding the potential to kill other people in following cars is very high.
It may be worth you trying Midlandmars, they seem to offer a wide range of services and offer member discounts. There work looks very impressive and they will be at least able to give you some guidance.
Search midlandmars on here and with google.
The weather will be great as Im not there.
Have a good track session, dont assume the older models are slower though. Some of them spend a lot of time tracking.
And dont forget, lots of pics please.