If this was an airport, its a lot easier to guess. I think if you book a large premium sedan, they will try to stick you in a compact crossover like Rav4. Impala has a low possibility, I haven’t seen them in the past few months. Luxury sedan you will receive a Chrysler 300s or maybe bmws sedan or suv if they have them.
For a HLE location, they might say we don’t have any cars and put u in a pickup truck, who knows.