How does the UK do car sales?

We have a lot of big dealer groups who are not tied to a specific manufacturer. Independent franchisees tied to a single manufacturer are uncommon I believe.

Even within each sub-brand of the group, they often work with different manufacturers.

Though Sytner (the biggest) tend to have single-manufacturer dealerships.

Probably a mix of both on both sides of the pond I imagine?

And there's less rigmarole during the process. Less aggressive sales tactics I believe