The 240-horse SS adds some much needed excitement to the Impala lineup, but this full-size sedan still lags behind the competition when it comes to refinement.
Six-passenger seating availability, good crash test scores, torquey V6 engines.
Vague steering, soggy suspension on base and LS models, low-buck interior.
Available Impala Sedan Models
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Base
LS
SS
The supercharged Impala SS joins the lineup for 2004. Besides offering 240 horsepower, the SS features a tightened suspension to allow it to take corners with a bit more gusto. Base and LS models have redesigned bench and bucket seats, and a sport appearance package is now available on the base sedan.
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