Perhaps the answer here is to insist that a renter must either have valid insurance already that would pay out to third parties in the event that they were driving any vehicle. Most fully comprehensive insurance in the UK already covers this assuming you have valid fully comp on some car already. For example I (being fully insured on my own car) could drive a friend's car without being specifically insured on it and…
> insist that a renter...have valid insurance [or pay a higher fee] If you don't own a car it is just about impossible to buy a liability insurance policy. I know this. I tried. I tried very hard. I don't own a car myself, but since I often rent a car when I travel, I decided that I'd try to buy a third-party liability policy instead of paying the absurd prices that Avis or Dollar charge (>$20 a day). I called about…
I wonder if it would be possible to persuade them to insure a "theoretical car" that pays no road tax and does 0 miles per year.