I went for “truck,” but sometimes there’s an “F” in it too.
i call it a wagon cos im from up north living da’an saarf.
they tend to call them lorries down here so its partly to wnd them up
bless em
if it works nothing if it doesnt ive got a well rehearsed litany 
I think you shall include “van” as one of choices - many scots call van everything, what have wheels and no windows on back 
Last time i was driving for scaffolding company (single shift for agency) and they calling “vans” flatbed lorries there…
As far as I spoke with Scottish drivers only old school guys are using “wagons” for that. Mostly there are truck, lorries and vans.
Keep on Truckin… 
I drive a Volvo FH,so I call it bloody uncomfortable!
Usually something unprintable.
Lastbill
Aye, it’s a waggin where I’m from…I call 'em trucks as well though.
my home…as i seem to spend all my time in it lol
Unit