Vintage Ad Browser is a time machine showing (and selling) ads from as far back as 1850 up to the present. It has everything from Airlines to Xmas. Transportation is obviously my favorite. The site has a very good search engine to help find specific categories. Check out the Gender category from the '20's It is absolutely hysterical!
There are all types of ads for all of the makes.
More Gals Per Mile!? Betty Friedan must be spinning in her grave! Not that Suzuki didn't know exactly what they were talking about.
Curiously they only have two of the Norton Girl ads. I guess the rest sold quickly.