The 2013 Nissan Altima was a big hit at the New York International Auto Show, and experts are predicting this car could be the best-selling family sedan by the end of the year. This projection is made all the more impressive as the newly-redesigned sedan won't hit dealers nationwide until July.

"Overall with improving fuel economy, we expect 2012 new car sales to jump roughly 15 percent over 2011," said Kelsey Mays, an automotive analyst for Cars.com. "Taking the redesign of the Altima into account, we'd expect the 2013 Altima to outsell its 2012 predecessor by 39 percent by year's end, 24 percentage points above our expected market growth."

The new Altima was among the many gas-powered vehicles on display in New York that offer improved fuel economy over previous models. In fact, a continuously variable transmission, coupled with weight reduction and a more aerodynamic design make the new model 15 percent more efficient than the 2012 version. The overall look of the Altima is relatively the same, but tweaked to appear sleeker, with a smoother front end, streamlined tail lights and a low-profile rear hatch. The sides of the car's body are also a bit more muscular in the new model.

While the newest model may outperform its predecessor, older models are still a good bet for those looking for a reliable family car that gets decent gas mileage. A 2012 Altima gets 32 miles per gallon on the highway. Those in the market for used cars in NJ can head to New Jersey State Auto Auction, which has a wide variety of makes and models sure to suit the needs of every driver.