Mobile ads work, which is why you can trace their legacy all the way back to horsedrawn Moxie Bottle Wagons. Remember Moxie? I know, neither do I. Other early entries include a truck touting Pep-O-Mint Life Savers (1918) and the famous Zippo Car, constructed around a very embarrassed 1947 Chrysler Saratoga. The original is lost, but a faithful recreation is on the road.
Car peel out.
Research assistance was by Madeline Horrigan. And here’s some video on kids going nuts over the Goldfish Mobile: