Bought an 08 Impala SS a few weeks ago, really enjoying it. Nice big car, comfortable ride, lots of power, I think it looks great. Quibble are lousy interior lighting (almost impossible to read a map in the front seat at night with the small lights in the rear view mirror), and odd cup holders; seats a bit flat. Easier to get into than my 06 Grand Prix GT, and easier on fuel too. It's your grandad's Impala until you stuff your foot into it.
Engine, for sure.
Better interior lighting, better designed cupholders, little more supportive seats.
† Edmunds.com received the highest numerical score in the proprietary J.D. Power 2014 Third-Party Automotive Website Evaluation Study℠. Results based on responses from 3,381 responses, measuring 14 companies and measures third-party automotive website usefulness among new and used vehicle shoppers. Proprietary study results are based on experiences and perceptions of owners surveyed from January 2014. Your experiences may vary. Visit jdpower.com.