The GT World Challenge America Powered by AWS has its own messaging app! Stay in touch with the teams during the race, and see the latest pictures of the cars. Features • Get to know about the teams and their members, • Stay informed about the next races’ schedule and latest changes, • Interact with each other, share questions and challenges ! About GT World Challenge America Powered by AWS The purpose of the GT World Challenge® Championships is to provide teams, manufacturers and aftermarket suppliers a competitive production-based race series in which to prove their products.