Answering only for the ROAV Bolt–
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Roav Bolt Can be used / registered only to One Google account at one time, other users using your car cannot use it with different phone.
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By Tracking, believe you mean Last car park position, believe this is not possible with Roav Bolt.
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Real Time Tracking is not possible with Roav Bolt, however this may be possible with Google Maps with real-time location Sharing feature. Also you may want to get a GSM / Cellular based GPS tracker for real-time tracking if you are really want to track where the vehicle goes.
Last but not the least, please post questions on Q & A section of Anker Community