That confirms what I was seeing from maps. Looking like National Trail raceway and the nats are spread out over 250 acres, vs Carlisles 82 acres. How close is parking? I know the Nats can be nearly a mile away.
From one end to the other it is depending where you park. For us swap vendors at the Nats, we rent a golf car. Makes running from one end to the other much easier for us old farts. Golf cars do cause issues though when it gets real busy.
