I was worried about others saying they'd push insurance on us, or add insurance without our consent. However, they just asked for our home address, showed us the contract on a screen, and had us sign it. We couldn't fully understand, but we signed anyway. I used my phone to translate and told them we already had insurance. I think they understood because there were no insurance charges on our final bill. We were lucky and didn't end up having to buy extra insurance. The car was relatively new and very clean. Fuel in France is really expensive, usually around 1.98. It's cheaper in Italy, around 1.8 for the one time we filled up there. French highway tolls are also extremely costly. So, self-driving trips aren't cheap! It's just convenient not having to drag suitcases everywhere. But driving is really tiring!