The 2007 Nissan Frontier comes in four trim levels: base XE, well-equipped SE, more luxurious LE, and the Nismo off-road model. SE, LE, and Nismo are available in King Cab (an extended cab with auxiliary rear doors) or Crew Cab (four full-size doors) configurations, with rear-wheel drive (2WD) or four-wheel drive (4WD), and are powered by a V6 engine. XE choices are more limited.

Frontier XE ($16,050) comes only as a King Cab 2WD with a 152-horsepower, 2.5-liter four-cylinder engine. It does offer the choice of a five-speed manual transmission or five-speed automatic ($1,050). XE has manual-crank windows and 15-inch wheels. A Preferred Package ($1,550) adds air conditioning, AM/FM/CD audio, tilt steering column, sliding rear window and privacy glass. Buyers may also opt for a Power Package ($950) that combines cruise control with power windows, locks (with keyless entry) and mirrors. Cruise control is also available as a stand-alone option ($300). New for '07 is an Appearance Package ($550) that adds chrome bumpers and 16-inch wheels.

Step up to Frontier SE, and you can choose from six configurations: 2WD King Cab ($18,950), 4WD King Cab ($21,650), 2WD Crew Cab ($20,800), 4WD Crew Cab ($23,500), 2WD Crew Cab Long Bed ($21,600), and 4WD Crew Cab Long Bed ($24,300). Standard equipment includes air conditioning, chrome front bumper and grille, sliding rear window, AM/FM/CD audio, tilt steering wheel, and the 4.0-liter V6. A six-speed manual transmission is also standard. Options for SE King Cab include a five-speed automatic transmission ($1,050) and 16-inch alloy wheels ($400). Again there's a Power Package ($1,050) that incorporates windows, locks, mirrors and cruise control; ordered on the Crew Cab ($1,250), it includes a microfilter for heating, ventilation and air conditioning (HVAC). Available only on Power-Package Crew Cabs is a power sunroof ($700). New for '07 is the SE Value Truck Package ($1,000-1,350), which includes the complete Power Package, plus limited-slip rear differential, floor mats, a bed liner for Long Beds, and a bed extender and alloy wheels for short beds.

Frontier LE 2WD King Cab ($22,900), 4WD King Cab ($25,600), 2WD Crew Cab $24,600), 4WD Crew Cab ($27,250), 2WD Crew Cab Long Bed ($25,100) and 4WD Crew Cab Long Bed ($27,500) come with all the standard features of the SE, plus power mirrors, windows and locks; fog lamps; chrome exhaust tips, door handles and exterior mirrors; remote keyless entry; height- and lumbar-adjustable driver's seat; leather-wrapped steering wheel; illuminated vanity mirrors; compass and temperature readouts; trip computer; sunglasses holder in an overhead console; driver's side seatback map pocket; and a first aid kit. Automatic transmission is also standard. Satellite Radio ($350) is available in either the Sirius or XM flavor. LE Crew Cab buyers can the sunroof ($700), Rockford-Fosgate audio with six-CD/MP3 capability ($850), and/or leather upholstery ($1,700). King Cab customers can opt for a similar audio upgrade ($550) that skips the fancy brand name but includes a vehicle security system.

The Nismo model is available as a 2WD King Cab with automatic transmission ($22,600), a 4WD King Cab with manual ($24,250) or automatic ($25,300), a 2WD Crew Cab with automatic ($24,650) or a 4WD Crew Cab with automatic ($27,350). (Nismo is not available as a Crew Cab Long Bed.) All share most of their standard and optional equipment with the LE grade, but add special off-road wheels and tires, off-road Bilstein shock absorbers, skid plates, and an electronic locking limited-slip rear differential.

Optional on 4WD automatic-transmission Nismo and LE is Nissan's Advanced Off-Road Traction System ($500-700), which includes Hill Start Assist, Hill Descent Control and Vehicle Dynamic Control. The less extensive Active Brake Limited Slip Package ($350) is available on LE and SE.

Available accessories include a hard tonneau cover ($1,060), a sliding bed divider ($270), a non-sliding bed extender ($260), a sliding bed extender ($300), a tow-hitch receiver ($410), bed rail caps and under-rail bed liner ($430), and side step rails ($300). Not all of these are available on all models, however, so check with your dealer.

Safety is improved for rear-seat passengers when you order the optional side-curtain airbags that cover both front and side windows in the event of a side impact, providing head protection. A Side Airbag Package ($550) that includes side-impact airbags for torso protection and side-curtain airbags for head protection is available on all trim levels, but only with certain other equipment.