It may well have been me (I was on my way to Ford Fair) - I was on the M25 going clockwise - I was overtaken by a group of Sapphire Cossies around Heathrow who I reckon were also on their way to Ford Fair.
I'm still working on setting the suspension to minimise rubbing but it's going to take some time and probably a bit more cutting of the front and back bumpers!
Cheers,
Andy