Speed City puts visitors beside Austin's Formula 1 circuit for a choose-your-own mix of speed and skill. Licensed drivers can attack the technical outdoor COTA Karting course, younger racers get a dedicated kiddie track, and everyone can try the 18-hole Circuit mini-golf course or the more demanding nine-hole Champions layout. A soaring zipline adds one more view of the complex. Reserve ahead for karting, check height and license rules, and leave room to compare lap times afterward.