We're gonna start off strong with THE GREATEST ROADSTER EVER BUILT. This Harley-Davidson ad is the platonic ideal of motorcycle ads at the beginning of the 20th century. It trades on both economy and racing pedigree, but hasĀ just enough of that late-19th-century voice (4 actual horse-power!) to make it clear that advertising ideas were still stuck mainly in 1899 at this point in time.