The 2012 Nissan Altima is a great looking mid-sized sedan that offers great fuel efficiency, with a highway rating of 6L/100Km (47MPG) for the 2.5S model. Its comfortable interior, smooth handling and performance make for an easier commute. But, if you need something a little sportier, upgrade to the V-6, which delivers 270 horsepower. And, all Nissan safety features come standard with each model.