Right, but in countries where they're very strict about drinking and driving, you won't see even salespeople trying to get people drunk while selling a car.
Just need to make sure that the driving customer has the beer after their test drive. You can fill up the companions before, however.
But to strengthen your point: I don't know for sure, but from what I can tell by looking at the place there's barely enough inventory at that showroom to allow some test drives. It's definitely not a car lot.