106 miles per Multi Map. About 2.5 to 3 hours on Thursday depending on how early a start and traffic met on the way - that also includes the traditional stop for lardy cake at the little cob shop in Tetbury. Would take a lot longer on the Saturday with the queues to get in.
I've still not forgiven them for the time back in the late eighties when I drove 50 miles to get there early morning on X-C day, only to be turned away when I got there!
They'd cancelled the event due to rain & the mud-bath state of the car-parks. So I had to turn round & drive 50 miles home again.
Computers and the Internet weren't available then & I hadn't heard any news on the radio.