The 2013 Nissan Altima is the fifth generation of Nissan's solidly-built, mid-size sedan. Known for its impressive fuel economy and comfortable ride, it comes in seven trims: 2.5, 2.5 S, 2.5 SV, 2.5 SL, 3.5 S, 3.5 SV, and 3.5 SL. All trims are paired with a continuously variable transmission (CVT). The base 2.5 models use a 2.5-liter four-cylinder engine producing 182 horsepower, while the 3.5 models are equipped with a 3.5-liter V6 engine that offers 270 horsepower. Key features include Nissan's Easy Fill Tire Alert and a hands-free text messaging assistant. The infotainment system included a 4" or 5" display, and Bluetooth hands-free phone system. In the safety department, Nissan incorporated their Advanced Air Bag System, Vehicle Dynamic Control and Traction Control.