Yes Peter but they have both the space and configuration which makes it both safe and practical. Apart from Silverstone (as configured for the Britcar 24 hours) and maybe current Donington (if you used the Melbourne loop) I can't immediately think of any other UK circuit that could accomodate it. Plus there's a big aversion in the UK to permit races with refuelling - in Europe they seem to have a more 'creative' attitude!
