I once drove overnight from Holyhead through the mountains, probably far too fast, and it was terrifying! They're all full of bloody traffic too
Oooh, I know that road. Lethal in bad weather!

most likely a victim of the cost thing, they could vary the locations a bit though from just car and bed. Even if it was just sitting on other bits of furniture in the room.
The new episode has a really nice scene of action dialogue - Sam on the laptop and Dean eating while they talk. And it is brilliant, so natural and believable and brotherly. I want more conversations like that!