In September each year the Goodwood Revival is held. It's a big show dedicated to classic vehicles, aircraft, fashion, etc.
As you can see, a lot of visitors really get into the spirit of the event and dress accordingly. However, as it's held at a racetrack, there are lots of demonstration laps and proper races. I found one for early 60s cars, and it's really interesting to see so many different cars are taking part, - who would have thought that a Mini and a Jag would be so close on the track. Although I think using a Ford Galaxie is cheating a bit as they weren't sold here!