I don't know if this has been discussed before but I encountered an annoying bug, which I have noticed a few times now. Over the past couple of days I have been free running the Subaru BRZ on Brands Hatch. When I get back to the garage the mileage has been registered, but a reboot of the game will reset it back to what it was before the free run session. Why wouldn't the save game store everything from the last session? After it all, it does appear to save everything else, but it really makes you wonder how much else that gets lost in the save file.