GT - I don't read AS, so I'd no idea they were up to anything. Don't really care either.
"Tunnel runs" have been mentioned by many people many times on here and we've been through the clyde about 5 times this year on various things, and as explained the guys down south make up a DVD of theirs.
Pistonheads did one in London that had about 6 squillion cars on it from memory. Bandit sent me a video of it about 2 months back. It was well cool. http://www.pistonheads.tv/clip1068 - there's one clip of it.
My idea is not really a "run" as such. All will become fully clear on Saturday over a satay and a chocolate cake.
Does ayrshire have many tunnels to run in anyway? []