Bit of late notice as I forgot to post it, but on Aug 14th in Springfield there is going to be the annual Tune by Tuna (Shriners) car show @ the Smith and Wesson complex. This is a huge show with hundreds of cars plus vendors and a swap meet. Also, there will be a separate police and fire vehicle show on the property.
http://www.tunebytuna.com/
https://www.facebook.com/home.php?sk=group_207685219271789