Best way to get a set of wheels in Mexico

I head out to Mexico next week for a surfing competition and I'm super stoked about the whole trip. It's my first time visiting the country so I definitely plan to explore some local historical spots when I'm not hitting the waves. The board and gear will just stay at the hotel while I travel around to see the sights. I need a reliable vehicle to get around the area comfortably during my free days. Where can I find a decent local company to get a ride for the whole stay?