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The 2007 Chevrolet Impala spans a broad model range that includes the base LS, the mid-range LT, the loaded LTZ, and the high-performance SS.

Impala LS ($20,830) comes with a 211-hp 3.5-liter V6; a four-speed automatic transmission; cloth upholstery, a split bench seat with six-way power for the driver, air conditioning, power windows and locks, AM/FM/CD, OnStar, cruise control with buttons on the steering wheel, and 16-inch steel wheels. Anti-lock brakes are optional ($600). The Flip & Fold-Flat rear seats ($275) are available. Leather seating surfaces are optional ($1,125), which comes with heated front seats and a six-way power passenger seat. A flex-fuel version of the V6 can burn E85 ethanol; it's standard in some states, optional in others.

LT ($21,440) upgrades to dual-zone air conditioning, bucket seats with six-way power for the driver, ABS, traction control, dual exhaust, fog lights, 16-inch aluminum wheels, remote starter, and interior power outlets. The standard engine is the 3.5-liter V6. The 3.9-liter V6, now with Active Fuel Management and 233 horsepower comes with 17-inch alloy wheels, priced as a separate 3LT trim level ($24,160).

LTZ ($26,250) comes standard with the 3.9-liter V6 and adds leather upholstery, heated seats with eight-way power, upgraded audio with MP3 capability, a leather-wrapped steering wheel with audio and cruise controls, 17-inch aluminum wheels, and a new-tire-pressure monitor.

The SS ($27,855) boasts a 303-hp all-aluminum 5.3-liter V8 designed specifically for front-wheel-drive applications. It also features Active Fuel Management (formerly called Displacement on Demand) and drives through a heavy-duty four-speed automatic. The SS comes with 18-inch wheels and tires, a performance suspension, and leather-appointed seats.

For 2007, XM Satellite Radio is standard on SS; optional on LS, LT and LTZ.

Safety features that come standard on all Impalas include dual front smart air bags and side-curtain roof-mounted air bags for front- and rear-seat passengers. All but the base LS model come standard with anti-lock brakes (ABS) and traction control.