1. I reserved a Mercedes Classe B, but I was given a Citroën Picasso at pickup. The staff said it was an upgrade, though I'm not very familiar with it. That said, the car was in great condition, spacious, and fully automatic settings took some time to get used to. Ultimately, it was fuel-efficient (being a diesel car), had good handling, and plenty of power. The built-in navigation system was very helpful, and we were quite satisfied. 2. The only nerve-wracking part was returning the car at Nice station. The parking lot path extended up to the top floor, involving a narrow spiraling road across 7 levels. It could have been easy to scratch the car, but fortunately, everything was fine in the end.