Last time we were there we drove and the car stayed parked the whole time. Looking back the only times I think driving would have been better was to DDT (as mentioned) and when we left Illuminations via the International Gateway/Beach Club route.
Thank you so much! We are very excited to be going back to Disney and are very excited about our first baby too! We are already planning a family trip for next October with our brothers and sister, parents, and of course the baby too!!!