GM's smart Cadillac ATC

BARCELONA, Spain--On display was one of Cadillac's more popular cars, rigged up with a 4G LTE connection from AT&T. The model, of course, isn't using AT&T's network (which doesn't yet stretch to Spain), and is more of a concept model of what can be done. Not pictured is the Chevy Malibu that was parked next to it.