Comment by mhandley

This could backfire on Tesla. If Tesla have better data than every other insurance company, then they'll be cheaper for low-risk drivers. But now other insurance companies know the only drivers that will not use Tesla insurance are high risk, so Teslas become harder to insure with all other insurance companies for a large fraction of drivers (and you don't know in advance if that's you), which in turn makes them less desirable to buy in the first place.