In my case I have one car and one account but my wife is usually driving in the morning and drops me off. So those trips get chopped in half and messes up the data. I basically use it only as a novelty at this point.

I could set it up on her phone but then we have the two phones problem. Obviously she isn't the driver all the time so I can't just delete it from my phone either.

Ideal would be to connect two phones to one account and if one phone disconnects then resume the trip on the other phone. If the data is in their cloud anyway this should be possible.