Thrifty Car Rental is trying a new way to increase its bottom line and keep its inventory busy as much as possible. The subsidiary of Dollar Automotive is marketing car rentals by the hour in New York City. While on paper this might sound like a swell idea ($19 for two hours), we think once some unsuspecting tourists fall for this and try to wheel around the Big Apple for an hour or two, they’ll find out rather quickly about the city’s legendary gridlock. No real worries, though. If they should get trapped in the no-escape maze of Columbus Circle, the most they’ll pay for a full-day rental is sixty bucks. Hey, welcome to New York! Heh.