Harman has released the Spark, a product that they claim can make any car "connected". It may be able to convey LTE connectivity, monitoring for auto security and automatic crash assistance on a vehicle. The Spark is currently available through AT&T in the US.
https://www.notebookcheck.net/Harman-launches-Spark-a-device-to-turn-any-car-into-a-smart-car.334360.0.html