Never heard much about this. Was it a Europe only series or something that never took off hence the supplies of unused examples around?
http://www.brooke-kensington.co.uk/pcars2.htm
Gulf colours quite .
I htink there was and is going to be a series in Europe… But they standard cars, standard power and everything just with roll cage, plumbed in fire ex and electrical cut offs, Ohlins suspension (very neat!) and a few other little extras…