Complex sentence: The car gets a handful of new technologies, that will roll across Cadillac's 2015 models including 4G LTE connectivity with a WiFi hotspot, CUE interface with Siri Eyes Free, and a Bose stereo with 12 speakers.
Split into simpler sentences: The car gets a handful of new technologies, that will roll across Cadillac's 2015 models. The CUE interface with Siri Eyes Free, and a Bose stereo with 12 speakers.