Carlisle is bigger and more organised. The Nats drag strip is spread out where as Carlisle is a huge square. The swap at Carlisle is huge and all in 1 area. The Nats is spread out with the commercial vendors are up close to the drag strip. The drag racing at the NATS creates a certain energy.
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.