[BAracer]

Thanks for your input Gary, wise words as usual and much appreciated.

There was a later incarnation of the Protec idea which I inadvertently missed out from the finished article - Pro Performance kit cars. There were four cars in the range:
Aston Martin DBR9, Chevy NASCAR, Audi R8 and Aston Martin LMP and I have now added them to the original thread.

If anyone's interested, Osborne's Toy & Model Shop in Rushden High Street have the Pro Audi R8 and the Aston Martin LMP kits still for sale...