Have you ever been to the states? What type of RV's are 'typical' over where you live? Let us in on the facts.
Yes, I have been to the States - and Canada - a number of times, mainly Florida and the Northern states such as Minnesota, North Dakota, etc. I love your country and enjoy driving in the US (except trying to remember to drive on the wrong side of the road). We're flying out to Florida on Thursday for a couple of weeks in the sun, then in July to Denver, from where we'll drive up to Saskatchewan where i have relatives.
The main type of RV here is what we call a 'caravan' (travel trailer). They are not as large as the travel trailers or 5th wheels you have in the States as our roads are narrower than yours and our cars are generally a lot smaller as well. Motorhomes are becoming popular as well, but again they are not on the same scale as those in the US. I think I have only ever seen one truck camper in my travels, mainly because, I suppose, there aren't too many trucks sold over here.
You should try to come over sometime, I'm sure you would like it. Scotland is a bit like the Rockies in miniature.
I'll maybe see you on my travels sometime.