Advertising that mentions potential problems draws customers’ attention to them. Mazda’s advert from 1973 does just this. And it uses weasel wording too.
As I said in the introduction, advertising addresses people’s worries. Just as Rover handled the problem that their 1993 620 saloon was a Honda Accord in tweed (“Above all, it´s a Rover”), this ad from 1978 attacks the common prejudice that Japanese cars were vulnerable to rust. I tried to find one of these cars for sale and found only the precursor to the Mazda 626, the 616 LN. It’s from 1975 and probably the only one left.