You've got to admire an advertiser who has the guts to say that their product is better than anyone else's. Obviously, anyone who would even consider buying anything other than a Chrysler must have brains of cheese.
Nowadays, most advertisers are a little bit more modest about their achievements – or at least are prepared to accept the possibility that their potential customers might choose a competitor. (They're also prepared to accept the possibility that a woman might actually buy one of their cars.)
Note to modern-day SUV drivers: the 1926 Chrysler economy car gets 30 miles to the gallon.