Renting a vehicle in Phuket requires a license, this means that the ordinary license from your home country isn't going to be valid over here. You'll need to get something called an international license for the type of vehicle you plan on driving. Another big point you must look out for is the place you'll be renting from. Definitely look around for reputed and well-reviewed companies to avoid any negative and unnecessary experiences. A majority of the bikes in Phuket are rented out by small outfits that have no national or international reputation. For cars, however, there are a number of well-reputed companies. You'll be ideally spending around 140 baht a day for a motorbike and between 1,000 and 1,500 baht for a car. With so many tourist attractions, Phuket is quite the busy town, so definitely check into a hotel close by to most of them like the Anantara Layan Phuket Resort to wind down after a good days exploration.