We have used the complimentary shuttle to Disney Car Care (just outside MK) many times. It's easy. You pre book your car hire (Alamo) and phone them to arrange collection from your hotel. We returned the car to MCO at the end of our break. This summer the price from Disney Car Care was exorbitant and we hired a car from Dollar situated at the Wyndham Lake Buena Vista on Hotels Boulevard. We were staying at SSR and walked to the hotel and picked up a Mazda 3 (at a great price) very quickly and easily which we used for the final 3 of our 4 week holiday. We are visiting again from 29th December until 11th January and are staying at POFQ for the first 5 days. We have again decided to rent from Dollar at Wyndham Lake Buena Vista. Plan is to get the bus/boat to Disney Springs and then walk across the road (using the new walkway) to get the car from 3rd January (check out day) until we head for home on the 11th. We will be staying offsite in a villa for the second part.