I pay pretty close attention to vehicles going down the road but I've yet to see a Dart! Actually, I take that back; I did see one on a car carrier, scrunched between a couple of minivans. But I ain't seen one motoring along under its own power...
Saw a Red Rallye and a Tungstin SXT within the last month both with "vanity" plates, so they are private cars. Heck my mom had to fight to get the car titled and played! Bmv questioned if it was a Dodge Dart, and kept telling her there was no way it was a 2013... Yeah.
I've seen three or four in the Lexington, Kentucky area. Mostly at the gas station near the interstate. Really nice cars, they're too small for me but my parents would happily ditch a tired Neon and an even more tired Acclaim for a pair of Darts if they had the money.
In in Oshkosh, WI (North East WI) I've seen a couple, A white and two red ones. Possibly a silver one, but it was a quick glance and could have been the same white one and just looked silver at the time. It probably helped that the Chrysler Dealership on radio ads claimed to have the most Darts in the state.
Here in the Twin Cities I've seen about 1/2 dozen of them, 3 of them on regular basis. (2 Ralley's and a SXT) On my trip to CO over Thanksgiving I saw 2, and one of those were parked at the top of Pike's Peak! (SXT) I haven't seen another Limited on the road yet.