The radio flyer is a classic, and old people, well, they’re classic too. Most retirees I know move to Boca, play shuffle board and eat dinner at 3. That might be true of Fred Keller and Judy Foster but they also spent 11 months converting their ’76 Mazda pickup truck into this road-legal Radio Flyer car. Now that’s what I call taking advantage of retirement. Check out photos of the conversion here.