The FE+ S gives better fuel economy thanks to improved aerodynamics, a rear spoiler, low rolling resistance tires, and revised transmission ratios. The SV, meanwhile, adds a six-speaker audio system, cruise control, a CVT automatic transmission, and upgraded cloth upholstery. The FE+ configuration is also available on the SV.
The SR has sportier features like 17-inch alloy wheels; a more aggressive front fascia, body kit and rear spoiler; and special seat fabrics. The SL, finally, tops the Sentra range with automatic headlamps, keyless entry and start, a leather-wrapped steering wheel, Bluetooth, a satellite radio, and a USB input with iPod connectivity.
Features like Bluetooth and keyless entry are also available as options on lower trims, unlike some competitors that make them available only on top trims, if at all.