I also had an idea for added safety is that why shouldn't we get a cheap smartphone, plug in a sim in it with data, give a permanent power supply to the phone through some USB charging option enabled from the battery and enablr google location sharing in it, hide the smartphonr somewhere good in the car....
This way, you will always have location of the car, God Forbids if the car is stolen, thieves usually know where to remove tracker from but they wouldn't know about this setup, which will allow you to get the live location through Google location sharing as well as Law Enforcement can get location through sim as well...
What do you guys think?