Rental cars are full of petrol when you pick them up. Rental operators offer various options regarding petrol upon return, but the cheapest option is always to fill up yourself at a nearby gas station and return the car with a full tank. When hiring a car from Dollar, check whether you can take it into Canada, as we have heard reports of problems. There shouldn't be any problems in this respect with Avis, Hertz or Alamo but it is always wise to check. Almost all operators impose a restriction against their cars being driven in Mexico.
Many operators now impose a restriction against driving on unpaved roads .
Some operators impose a restriction against driving their cars in parts of New York City, especially the island of Manhattan. All normal rental cars in the USA and Canada take unleaded petrol, which is universally available. Cruise control, central locking and electric windows are common. Sunroofs are very rare, however. All normal rental cars have automatic transmission, which is very easy to get used to provided you remember that when in gear the car will creep unless you keep your foot on the brake.