When is the show where all the cars are outside and in competition

If you go to their eebsite,they have a schedule of events.

I don't know, you will have to Google that. I'm not sure if you are speaking downtown Tacoma at the museum, or if you are speaking of the event "L" has each year in Parkland? Good luck with your Google search; it should provide you with information you are curious about! The one in Parkland is much more fun from what I have heard