The Nissan Altima is a front-wheel-drive, midsized sedan similar in size to the Toyota Camry. Nissan also sells the similarly sized Maxima, but that car is aimed at the entry-luxury segment and is significantly more expensive. The Altima is generally available in S, SL and SR trim levels with either a 2.5l four-cylinder engine, or 3.5l V6 engine. All Altimas equip a continuously variable transmission (CVT) for improved fuel economy which is unusual in this segment. The base S model is somewhat basic with steel wheels and wheel covers, but option packages add common upgrades for a reasonable price. The 2012 model is the last year of this body style before a major update in 2013.