To advertise the Peugeot 208 in Brazil, the company's local agency has gone all the way back to 1965 - and a cartoon that predates most of the hatchback's buyers, probably - to the Wacky Races.

Olympic athletes have become a hot commodity on Madison Avenue as the world gears up for this summer's games in Brazil. Visa, a longtime sponsor of the event, tapped the star power of a whole ...