Picked up a 2021 BMW 530i with around 25k a couple weeks ago on a wed evening around 5pm. I did peek at the options available a week later on return (as I often do) and for whatever it’s worth the executive concierge or whatever they are called, said that the best time to come for selection is Sunday eve because they get so many weekend returns, or weekday evening In general are the best bet for premium vehicle variety.