We haven't rented a car in years but when we did, we would take a shuttle (or driver) to Negril, then rent locally from Vernon's. Then one year at Tensing Pen, we realized that the car stayed parked in the lot for about 99% of our stay. That was the last time. Now if we decide on a day trip somewhere we hire a driver. (shout out to Niah at LTU and P.T. at Catcha).