Cadillac will add enhanced in-vehicle connectivity with the addition of OnStar 4G LTE and the CUE Collection suite of applications. The 2015 ATS Coupe will be among the first Cadillac models equipped with both advanced technologies when it goes on sale this summer.
OnStar 4G LTE is a faster and more reliable connection for in-vehicle applications compared to competitive 3G systems. A built-in connection allows passengers access online content and information through a Wi-Fi hotspot, which can accommodate up to seven devices.
Source
GM News