As of last week, the average price of gasoline in Mexico was $5.34 per gallon. If you aren’t set on renting a car in Mexico, then consider Kuwait. Gasoline prices there are some of the cheapest in the world at $1.29 per gallon as of last week. Hong Kong is another great place to visit and rent a car, but keep in mind that gas prices can be expensive at around $11.70 per gallon.