You can’t rent a car on the island
The government of Bermuda has made car rental illegal. The main reason for this is the island's small size (21 square miles) and population of only 65,000 people. However, the island expects roughly 600,000 visitors per year, and the infrastructure would be overwhelmed if everyone leased a car. This is definitely among Things About Bermuda You Should Know before travelling to this country.
So, what are your alternatives? Scooters and mopeds are readily available and inexpensive to hire, and there is also a burgeoning market for electric minicars. If you prefer, you can rent bicycles (and get some exercise at the same time) or take one of the many cabs accessible across the island.