Got a Prius as a rental one time because it was the holidays and thats all they had on the lot.
I drove through some moderate flurries on the highway that any normal FWD sedan would laugh at. Maybe a half inch of accumulation. Every time a big rig flew past me, I would slide several feet.
On the bright side, I felt very lucky to be alive after that trip...
I would have thought that big battery would make a great weight...................