The 2003 Nissan Altima SE-R is a performance-oriented version of the popular Altima family sedan. It is powered by a 260-horsepower 3.5-liter V6 engine, and features a stiffer suspension, larger brakes, and a 6-speed manual transmission. The SE-R also includes a unique body kit, 17-inch alloy wheels, and a rear spoiler. Inside, the SE-R has sporty bucket seats, a leather-wrapped steering wheel, and a Bose audio system.