On arrival I was told that the fact that I had booked a luxury car was an error, and it was the fault of Expedia and when I said "I booked with Kayak and they said directly with Avis" I was told that in that case if was an error with Kayak. They then proceeded to offer me a small car, then a larger one and eventually a larger diesel car. They said they might be able to give me an electric one (what I booked) and maybe a Polestar. Interestingly when I logged on to my Avis account it said that what was booked for me was a Polestar. But in the end the possibility of getting the polestar remained just that, it was not offered. The car I got with fine, and I even extended the rental for another day. It was very disappointing to me that they tried to fob me off with various smaller cars than I had booked and that they told me that I had only booked a small one, and that a large or luxury car was "just a normal error that Expedia and Kayak make all the time."