About 2021 Nissan Altima Altima brings an exceptional level of advanced Nissan Intelligent Mobility technology to its segment -- including available Intelligent All-Wheel Drive, ProPILOT Assist and Nissan Safety Shield 360 technologies. The 2021 Altima features an athletic stance and low, wide proportions -- thanks in part to the use of two low-profile engine designs. Available exterior elements include the expressive V-motion grille with dark chrome finish, LED projector headlights with signature Daytime Running Lights, LED fog lights, floating roof with slim pillars and single panel moonroof. Inside, the 2021 Altima interior offers a near-luxury feel in both design and materials -- marked by the lightweight, layered and more horizontal "gliding wing" instrument panel and high-contrast colors and trim. The uplifting interior design also offers a high level of comfort, convenience and connectivity features, including available 7.0-inch Advanced Drive Assist Display, NASA-inspired Zero Gravity seat design with dual-density foam and added bolstering for improved holding and support, available perforated leather-appointed seat inserts, remote engine start and available 8-way driver's seat with memory. For 2021, Altima again offers the choice of two powerplants, including the world's first production variable compression turbo inline 4-cylinder. It delivers 236 horsepower and 267 lb-ft of torque. Also available is an advanced 2.5-liter 4-cylinder direct injection engine, rated at 188 horsepower and 180 lb-ft of torque FWD (182 hp/178 lb-ft AWD). The 2021 Altima is offered in five trim levels: S, SV, SR, SL and Platinum. All five come equipped with the standard 2.5-liter engine. All grades except S are available with Intelligent All-Wheel Drive. In addition, Altima SR is available with the advanced 2.0-liter VC-Turbo engine (front-wheel drive only).