There is going to be a free carshow at the 5*8 Bar and Grill in Champlin on June 12th. the sign says its only from 5-8 but last year there was a pretty big turn-out so it will probably go longer. Space is limited so if your planning on going get there at the start to get a good spot.
here's a map:
link for map if it doesn't show up:
http://www.mapquest.com/maps/map.adp?la ... estaurants