Back in 1995 and 1996 there was a place in Negril where you could rent 4-wheelers. They were nice and stable and with those big wheels you could barely feel the potholes. In 1996 we were a group of 5 couples and we all rented one. They were a blast! We went all the way to Sav and explored the countryside outside of Negril.
I wish they still had them. When we last checked we were told it was too difficult to get parts shipped to Jamaica.