On a sunny Saturday afternoon, there's only one place to park your presidential convertible: Keller's Drive-In. On the west side of the building that's responsible for Dallas' most popular take-out burger on a poppy seed bun, you might not feel comfortable hanging out with the motorcyclists who have come to show off their hogs. But on the east side, you'll be the envy of every classic car owner in Dallas. The owners of classic Chevelles, Mustangs, Chargers and other shiny sports cars congregate each weekend and sip on Coors Lights in between burger orders while talking paint jobs, engine configurations and plenty about the good old days. Say hi to Shirley, the waitress who's been taking orders since the place opened 46 years ago. Grab yourself a burger and connect with the blue-collar vote. Watch out for mustard on your chin, and remember, you're in Dallas. Maybe leave the top on your convertible closed.