Once again, the City of Petaluma salutes the film, American Graffiti, with gusto, passion and…if you dare to expose your chopped, channeled and hand-rubbed baby to our rugged streets…industrial-strength springs and extra heavy-duty shocks. Petaluma’s roads are more suited to off-road endurance vehicles than hot rods with a 6-inch road clearance. Nonetheless, it was a delight to see our downtown streets adorned with vintage roadsters bedecked in chrome, candy-apple paint jobs and Von Dutch pin striping.