In Michigan "In Michigan, the speed limit on unmarked roads is 25 mph in residential areas and 55 mph on trunk line and county highways. However, on other roads, if there is no properly posted speed limit sign, the “basic speed law” applies which requires a careful, prudent, reasonable and proper speed." HOWEVER my Model 3 will only go 45 mph on the surface streets if it doesn't know the speed limit. Sigh, it annoys others on the road and I normally turn AP off if there is someone behind me. Does anyone know if V9 FSD knows default speed limits in states or will it still limit speed to 45? FSD pretty much useless on surface streets outside of city if so. And if there is no end of limit sign the car will eventually slow down if a long way from the last 55 speed limit sign.