Sue and I normally go to Scotland for a couple of weeks each year. I found that a field camera set up with lens and sitting on the back seat of the car was very fast to set up (and, with a quick release plate) fast to pack up as well. This year although I took medium format as well, the large format camera was used and the medium format ones weren't. That's more down to me preferring large negatives though. I've had a few chats with passers by (including other large format users) over the years.
Depending on when you go, be prepared for extremes of weather. Three of four years ago (beginning of June) when we reached Aviemore the first person we saw was on skis. The skiing on Cairngorm was fully operational. Before that, in really hot weather in the same location, someone at our campsite said that they'd just be caught in a white out.
The great thing about modern technology is that you can use Google street view to see what the scenery is like on different routes.