We've parked at the finish the last twice and bus/metro-ed back to start. That's great but.....
last year queued for over an hour to get out of the car-park!!
Live in Northants and it took us 8 hours to get home...arghhhhh!!!!
This year I'm going on an organised coach/hotel package (picks me up in Northants, up there, hotel/meal/early breakfast, taken to the start, waited for at the finish, brought back to Northants) - hopefully this will sort out any technical problems on the day :o)
Good Luck whatever you decide to do....and enjoy it :o)