I'm looking at buying a GPS tracker for my car. Wondering what folks like? Standalone battery or one that runs off the car battery? My car is a race car so the tracker would be on all the time as I figure it's most likely to be stolen via flat bed because if they start the car I'd probably hear it and they would be meeting the business end of my Sig and a hot 40 cal hollow point. How much draw do they put on the battery? If it hooked to the car battery do you think the thieves would be smart enough to pop the trunk and cut the lead to the tracker? Any thoughts or recommendations would be great. Thank you and happy hollidays!