Nissan Altima outsells Camry, Accord in March, named best-selling sedan in America for first time

Nissan Altima – Click above for high-res image gallery

Nissan says it achieved a 9.7 percent U.S. market share in March, the highest single month in company history. Complementing March's heady number is an overall market share of 9.3 percent for Nissan in the first quarter of 2011. That represents a 0.3 percent gain in market share, building on 2010's 0.4 percent gain.

March also saw the Nissan Altima take the title of best-selling sedan in America, another company first. The Altima contributed 32,289 units to Nissan's 121,141-car total, which is nearly a 27 percent bump over last year's March figures. It isn't immediately clear what incentives Nissan had on the car during the month of March to aid sales, but presently, the Japanese automaker is offering zero-percent financing for up to 60 months or 1.9 percent APR financing for up to 72 months, or $1,250 cash back.

Had enough numbers? Too bad, Nissan isn't quite done. Monthly sales were up 28.4 percent for the division, another record, and Infiniti saw a 13.5 percent sales hike in March. With numbers this big, Nissan is looking at a banner year.