SuperCharged Go Kart Racing | Multi-Level Racetrack in CT, SuperCharged Electric Indoor Go-Kart Racing and Trampoline Park is the #1 family theme park for Norwich, Groton, New London, Colchester, Waterford, Middlesex, Manchester, and Glastonbury in Connecticut. We have the fastest and loudest go karts on the planet! Let’s get your party started ASAP!.