Here is an 80s windslammer for sale, acts as a spoiler / for towing non aerodynamic caravans to cut through air cleaner After a tenner collection only from Sheffield
i had one of those in white on my 1600d escort estate - it didn't help me having to change down to 1st for some welsh hills when i had a caravan....... probably about 60bhp didn't help the towing lol.
.......yes...? lol! i havent fitted it to the van to see what it looks like but i can see the logic if the caravan is an older one and a bit boxy at the front