Check the listing for details. Anki OVERDRIVE Expansion Track Speed Kit 2 Strait Track Sections. Color: Black, Condition: New. Listed at 13.95 USD. Anki OVERDRIVE Expansion Track Speed Kit Slot Cars Race Tracks Accessories ToyDescription: Contains 2 Strait track pieces Use your mobile device to take command of real robotic Supercars in Anki OVERDRIVE.Build long straightaways where there's nowhere to hide with the Speed Kit!An Anki OVERDRIVE Starter Kit and a compatible mobile device are required to play.Expand the battle with expansion tracks, Supercars and the all-new Supertrucks.See below to learn more about Anki OVERDRIVE.What makes Anki OVERDRIVE the world's most intelligent battle racing system? Tech so advanced, it feels like the future. Each Supercar is a self-aware robot, driven by powerful artificial intelligence (A.I.) and equipped with deadly strategy. Whatever track you build, they'll learn it. Wherever you drive, they'll hunt you down. The better you play, the better they become. Whether you battle A.I. opponents or friends, your tactical options are unlimited. And with continuous software updates, the gameplay always stays fresh. Customize weapons. Swap out cars. Build new tracks. It’s easy to pick up, and nearly impossible to put down. The future of play has arrived.