There was a stereotype about Scottish immigrants being thrifty, frugal, or pennypinchers and that led to a lot of marketing and advertising that used the stereotype as the focal point, but this is the first time I've ever seen it on a car in the era of gas economy proving runs

I wouldn't be surprised to learn that Scotch Tape adhesive ability was something of a play on the "gripping so tight" penny pincher old stereotype

http://myflatheadford.com/gallery-standard-3-column/