Look closely at the tailwheel. Actually, it isn't a normal tailwheel at all. It is a motorcycle.
After landing at an airport, the pilot/driver folds the wings, fires up the motorcycle engine, and drives out onto the highway to the final destination. I saw it driving up and down the roads at the air show and it seemed to work well.
Here is another picture:
You can read more and watch a video at http://goo.gl/2S8A5.