Couple of years ago on our way home from the UK (in the car) - we saw a "mature" couple on matching 3wheel scooters pull up at Plymouth ferry docks. Surrounded by BMW GS's and all sorts of other "big-boy" bikes they looked a bit out of place.
Seemed to have pretty much no luggage - just a little topbox on each (though it turned out there is a cavern under the seat). One of the bikers walked up and asked - come far? - Nah says the old geezer with a bit of an accent - only Fort William (600miles-ish). They were going to cross Spain to the south non stop when they arrived too (about the same). All the other riders I spoke to had at least one stopover planed.
And no they were not Scot's - Spaniards.