Indoor Electric Go-Kart Racing, Axe Throwing & Events | Autobahn Indoor Speedway Indoor electric go-karting at Autobahn Indoor Speedway is perfect for thrill-seekers, corporate events and parties! Serving Alabama, Maryland, Virginia, Florida, Massachusetts, Pennsylvania, New York & Tennessee. Axe Throwing available at many of our locations. Autobahn Indoor Speedway participates in the American Ekart Championship (AEKC).