Hi Josh,
I am not completely certain if it is the record, however, for the 'FF1600' specification, I am aware that Dieter Hackel did a 2.44.000 on the current Spa Francorchamps circuit, in an 88 Van Diemen with an average speed of 94.83mph, on the 21st July 2012. Ive not seen quicker in the 5 years at the races I know that have been taking place at Spa.
As there have not been many races that allow more current FF1600 models at Spa since the layout changed (and gravel traps removed) in the mid 2000's. The FFR series in 2013 allows cars upto and including year 2000 cars to enter to FF1600 regulations on ACB10 tyres, so I suspect it wont take long for this time to tumble!
And Im quite aware Spa isnt in the UK, but its only 4 hours from Dover
