We rent a car from budget. (its located in one of the hotels near DTD). Budget will pick you up from your hotel and bring you to the car rental office for free--however you must make a reservation (you just usually call the day before). VB is about 2 -2.5 hours from Disney and isn't a bad ride. We go east until 95 then south.
VB is very nice!! We try to go every trip just to get a piece of the beach. We usually stay in the inn and just love the garden view inn rooms. The 1st time we went we had an ocean view and I got sick from the constant motion of the waves. The garden view rooms have a great view of the gorgeous sunset!!!!!
There isn't a lot to do there besides the beach, pool, tennis courts, kids activities, mini golf, ping pong, archery, basketball, bike riding, shuffle board, camp fires, and did I say beach. The beach is very nice. There are houses to the left and its really nice to walk the beach as it is very clean.
In the VB area they have lots of restaurants (about 10-15 minutes south) and an outlet mall (close to 95).
Its a great way to destress from a disney vacation. EnJOY!!!