Ponies and Pistons Car Show at the Polo Classic. August 7th 2022. 11am to 4pm (Polo Match at 2pm). Classic and Exotic cars, Polo Ponies, Big Hats and Great Food and Drinks, at the MPLS Polo Club Maple Plain, MN. Invitation Only Call 952-451-2104.Terry sponsored by 360 Sports. Closest event to the Kentucky Derby we have in Minnesota.