Upgrade your toy cars to the R.E.V. App-Enabled Battle Cars. Putting you in the driver’s seat, the app allows you to seamlessly control the speed and direction of your car with ease. Coming with two cars in the set, the R.E.V. Battle Cars are made for combat. Choose to enable an artificial intelligence character; who can drive, think, and fight on its own; or challenge a friend to a race. The R.E.V. Battle Cars use BeaconSense technology, an indoor GPS that can sense surrounding objects, and they don’t require any special surface so you can battle on carpet, tile, hardwood floors, and more. The app is ultra responsive to your touch to give you an agile edge while the cars are able to track the status and location of each other in real time, letting you stake out your opponent and attack when the time is right.