There were 3,712 sold in the U.S., a record for the sporty Italian subcompact since its relaunch a year ago. Chrysler, which is controlled by Fiat, reported the biggest sales increase of Detroit's Big Three, up 34% from a year earlier. That topped analysts' forecasts, boosted by strong sales of sedans and Jeeps. General Motors and Ford posted gains that trailed estimates, rising 12% and 5%, respectively.