Octane Raceway's 1/3-mile racing track winds through the facility and then outside before looping back in. It's the only full-time indoor-outdoor track in the United States, and during the summer, the oppressive Arizona heat that builds inside drivers' racing helmets has the added effect of making them push the pedal to the metal even harder. Suffice it to say, these aren't state fair bumper cars — the 32 go-karts at Octane Raceway are electric SODI RTX European racing karts that can hit speeds up to 45 miles per hour. Adult races are 14 laps, while junior races make 10 laps around the track. Winners are determined by a fastest lap format. Racing memberships are required to race but cost as little as $7 a year for the standard membership (which includes helmet rentals and head socks) and $200 a year for the titanium membership (which includes everything from the standard membership, plus five cart races and additional discounts). Races cost $22 per driver. Vroom, vroom.