Halloween Horsepower Car Show

The Horsepower Halloween Car Show takes place on Friday, October 16, 2026, at the South Oasis Lot in front of ThrillHouse Family Entertainment Center in Marion, Illinois. Running from 6:00 PM to 9:00 PM, the evening gathering brings together up to 100 vehicles for an after-dark celebration presented in partnership with ThrillHouse, Supreme Window Tint, and Robinson Performance.

Vehicle registration is free but capped at 100 vehicles, with advance reservations required through Eventbrite. All show vehicles must arrive and park between 5:00 PM and 5:45 PM. The lineup welcomes classic cars, custom builds, and muscle cars, with Halloween vehicle decorations encouraged. Participants are also welcome to bring candy to hand out during the show.

Spectators and families can enjoy costumes, fall treats available for purchase from the Lil Buddies Food Truck, cold drinks, games, and entertainment inside ThrillHouse just steps away from the lot.