Yeah mine averages 30 on the back road journey to work driving normally, but when caning it that can drop to 15mpg!

Worth also looking at the panel gaps all round. I looked at one that had horrible gaps around the passenger door and had receipts for all the suspension having been replaced on that side. Pointed to the fact that it might have had a knock and the owner didn't have a decent explanation for it, so I walked away.
Gaps should be spot on, they're well screwed together cars. Drive should be really nice and smooth, they're not the quickest cars as standard so don't expect to be blown away.
Good luck and when you've got one put the pictures up so we can have a look!
