Oh, I forgot to mention this - when I was getting the C55 serviced the service manager mentioned that the owner of the local fish and chip shop had an M6, on a lease, and that the "first thing he did was fit a mileage blocker, got it on the lowest mileage lease he could so it was cheap and will make sure the car only registers what the lease says he can do per year", which adds a new and terrifying dimension to car buying.
Oh, I forgot to mention this - when I was getting the C55 serviced the service manager mentioned that the owner of the local fish and chip shop had an M6, on a lease, and that the "first thing he did was fit a mileage blocker, got it on the lowest mileage lease he could so it was cheap and will make sure the car only registers what the lease says he can do per year", which adds a new and terrifying dimension to car buying.