Do this enough - like I did renting cars for roadtrips - and you Will have both good and bad memories. I have been doing this for 5 years and for every "that was such a fun drive for us" there is a "we needed something spacious and we got a compact city Suv because they screwed up our booking and there were no alternatives" kind of stories. Or "we got an X5 with a steering wheel making funny noises" or "we ended up getting a hybrid with a very small trunk" or "the car started smelling funny a few hours into the ride" or "they got us a car with a slow leak in a tire". And when that happens, its sometimes enough to suck all the fun from your rare vacation and it costs a lot of time to get a new rental, in relation to the time you have at your disposal. Its also not really cheap. I owned a range rover before deciding on switching to EV plus rentals combo and my total costs of using a car stayed at the same level.