While I can't claim to know what will happen once you follow my advice, I would recommend starting at the available drives page on racecarsdirect.com to see what drives are currently available.
Most of the drives seem to be Europe-based anyways, so that could be a good starting point. It seems like there's a decent variance of skill levels as well, everything from arrive-and-drive in an MX5 cup car to seats in a prototype for longer endurance races like the one you're looking for. Best of luck!
... View more