Note that some car rental companies now prohibit renters from taking their vehicles on the coastal road, and others, including Budget, increase the deductible amount that the renter is responsible for if there's an accident on this road. (Check your rental agreement.)
It's not because of any danger from bandits, but because the number of accidents on the road is very high compared with other roads. A lot of people drive it fairly fast, and you can unexpectedly start drifting or sliding on the gravel.
--Lan Sluder www.belizefirst.com