One hand on wheel, one hand on horn: Chicago
One hand on wheel, one finger out window: New York
One hand on wheel, one finger and head out window, cursing, cutting across all lanes of traffic: Philly
One hand on wheel, one hand on newspaper, foot solidly on accelerator: Boston
One hand on wheel, one hand on non-fat double decaf cappuccino, cradling cell phone, brick on accelerator, with gun in lap: L.A.
Both hands on wheel, eyes shut, and both feet on brake, quivering in terror: Ohio, but driving in California.
Both hands in air, gesturing, both feet on accelerator, head turned to talk to someone in backseat: Italy
One hand on latte, one knee on wheel, cradling cell phone, foot on brake, mind on game: Seattle
One hand on wheel, one hand on hunting rifle, alternating between both feet being on accelerator and both feet on brake, throwing a McDonald's bag out the window: Texas
Four-wheel drive pick-up truck, shotgun mounted in rear window, beer cans on floor, squirrel tails attached to antenna: West Virginia
Two hands gripping wheel, blue hair barely visible above window level, driving 35 on the Interstate in the left lane with left blinker on: Florida
One hand on wheel, the other holding a cell phone, driving 130 mph and four feet from your bumper, late for happy hour, while flashing headlights to tell you to get the hell out of the way: Washington, D.C., Beltway
Seen 'em before, but those are great. :-)