Key West is small (just four miles by two miles) so parking can be hard to find during busy times. And gas can be expensive. That’s why electric car rentals are such a popular way to get around the island. These zippy eCars are easy to maneuver around the narrow streets of America’s only Caribbean island. And unlike a standard rental car, you don’t have to worry about getting sand out of the upholstery or carpets after a day at the beach. These rugged cars are tourist-friendly.