Okinawa has one major expressway, running from Nago to below Naha.  We've heard all sorts of amazing stories about how it cuts down travel time and that it has practically mythical speed limit of *gasp* 80 KPH (to put that into perpective, that's only 49.7 mph.)  The government is currently running an experiment and has made most of the expressway free for a limited time.  We decided this would be the perfect opportunity to find out how it feels to drive over 60 KPH (37 mph), our normal top speed, for the first time since we've lived on the island.