Specifications Comparison: 2006 Chevrolet Impala vs 2009 Chevrolet Impala

Curb Weight

Trim	Engine	Drive train	Curb Weight	Horsepower	Weight / Horsepower Ratio
LS	3.5L V6	FWD	3,553 lbs.	211 hp	16.8 lbs/hp
LT 3.5L	3.5L V6	FWD	3,637 lbs.	211 hp	17.2 lbs/hp
LT 3.9L	3.9L V6	FWD	3,637 lbs.	240 hp	15.2 lbs/hp
LTZ	3.9L V6	FWD	3,709 lbs.	240 hp	15.5 lbs/hp
SS	5.3L V8	FWD	3,712 lbs.	303 hp	12.3 lbs/hp
Police Pkg	3.9L V6		3,588 lbs.	240 hp	14.9 lbs/hp

Trim	Engine	Drive train	Curb Weight	Horsepower	Weight / Horsepower Ratio
LS	3.5L V6	FWD	3,555 lbs.	211 hp	16.8 lbs/hp
LT 3.5L	3.5L V6	FWD	3,555 lbs.	211 hp	16.8 lbs/hp
LT 3.9L	3.9L V6	FWD	3,649 lbs.	233 hp	15.7 lbs/hp
LTZ	3.9L V6	FWD	3,649 lbs.	233 hp	15.7 lbs/hp
SS	5.3L V8	FWD	3,711 lbs.	303 hp	12.2 lbs/hp