From the article: "Vehicle telematics is data transmitted from the vehicle to the automaker or OEM through embedded communications systems in the car," the Ulys

From the article: "Vehicle telematics is data transmitted from the vehicle to the automaker or OEM through embedded communications systems in the car," the Ulysses document continues. "Among the thousands of other data points, vehicle location data is transmitted on a constant and near real time basis while the vehicle is operating." Surely you would know if there was a SIM card in your car? How else could this be done?