I'm not a big fan of racing, but I married a country girl and she likes it. So I'll drag out the 13.5 foot screen for her to watch the Coca Cola 600 this evening. This will be it til the fall, it's just to damn hot here now.
Here's a pic. It's my son setting it up for playing xbox with his buds. The screen in that pic is actually only 12' x 8' the new is 13.5 10.5.
In college, I had friends that lived in a smooth stucco house that was painted white. They would routinely set up a projector pointing at the side of the house and invite a bunch of folks over to watch movies and drink beer. Good times.
The summer was the best time to do it here in Colorado. Winter was too cold.