The 2008 Nissan Altima is part of the model's fourth generation. Available in both coupe and sedan body styles, it offers four trim levels: 2.5, 2.5 S, 3.5 SE, and 3.5 SL. The 2.5 trims get a 2.5-liter four-cylinder engine that makes 175 horsepower, paired with either a six-speed manual or continuously variable transmission (CVT). The 3.5 models get a 3.5-liter V6 that produces 270 horsepower mated to either a CVT or a six-speed manual in the SE model. Standard safety features on all trims include antilock brakes, front-seat side airbags, and full-length side-curtain airbags. Available tech features include a push-button ignition, a rearview camera, and a navigation system