All of the Disney Resorts are serviced by extra shuttle buses throughout Marathon Weekend. No matter where you stay, there will be abus that will take you to/from the race. I would highly recommend that you utilize these buses as the traffic patterns will be thrown completely out of whack that weekend and it will be very difficult to get around with a car. However, if you must be as close as you can be to the starting line, since most of theraces begin at EPCOT, I'd stay at one of the EPCOT resorts....