The 2012 Nissan Sentra sedan is offered in six different trim levels, including four mainstream models based on a 2.0-liter four-cylinder engine (2.0, 2.0 S, 2.0 SR and 2.0 SL) and two high-performance variants powered by a 2.5-liter engine (SE-R and SE-R Spec V).
The entry-level Sentra 2.0 starts with 15-inch steel wheels, air-conditioning, cloth upholstery, 60/40-split-folding rear seats, power windows and locks, a tilt-adjustable steering wheel and a four-speaker sound system with a CD player and auxiliary audio jack. The Sentra 2.0 S adds 16-inch steel wheels, power mirrors, a height-adjustable driver seat, cruise control, remote keyless entry and a six-speaker CD/MP3 audio system with an iPod interface.
The 2.0 SR includes those items and adds styling cues including distinctive front and rear fascias, side sill extensions, foglamps, a rear spoiler and 16-inch alloy wheels. The SL gets you a leather-wrapped steering wheel, keyless entry/ignition, Bluetooth and an upgraded stereo with satellite radio and a color display.
Options on the 2.0 models vary by trim level and include leather upholstery with heated front seats (SL only) and a Convenience package that bundles keyless entry/ignition, Bluetooth and a leather-wrapped steering wheel (S/SR only). A Technology package adds a navigation system, satellite radio and an iPod interface (S/SR only). A Special Edition package includes everything in the Convenience and Technology packages plus a sunroof (SR only), while the Special Value package includes the sunroof, navigation and a rearview monitor (SL only). An Audio package includes an eight-speaker Rockford Fosgate audio system (SL only).
The Sentra SE-R trim level is equipped similarly to the 2.0 SR but adds 17-inch alloy wheels, performance-oriented suspension tuning, an aero-style body kit, cloth sport seats, the SL's stereo with color display and gauges that allow the driver to monitor things like oil pressure and g-forces during cornering. The SE-R Upgrade package adds a sunroof, keyless entry/ignition, a rearview monitor, the navigation system, satellite radio and the Rockford Fosgate audio system.
The SE-R Spec V builds on the SE-R's sporting nature with more power, higher-performance tires, an even firmer suspension with a lower ride height, larger front brakes and sportier interior trim. Also available on the Spec V is an optional SE-R Spec V Upgrade package that includes all the items in the SE-R Upgrade plus a mechanical limited-slip front differential.
2012 Nissan Sentra models with a 2.0 in their name are powered by a 2.0-liter four-cylinder engine that generates 140 hp and 147 pound-feet of torque. The Sentra SE-R and SE-R Spec V get a 2.5-liter engine that produces 177 hp and 172 lb-ft of torque and 200 hp and 180 lb-ft.
The 2012 Nissan Sentra comes standard with antilock brakes, stability control, front-seat side airbags, full-length side curtain airbags and active front head restraints. The sportier SE-R models come with four-wheel disc brakes, while the others have rear drums.