I have had my 2003 Impala base for a few weeks now, and it should be warming up around here soon. When I bought the car it was filthy inside and out, and had been owned by smokers. I used some aerosol carpet cleaner to clean the seats and carpet (too cold outside to steam clean, I would have ended up sitting on an ice cube for a week), but something had to be done, the seats were so filthy that you could not see the pattern (yeah, that bad), and the carpet had stains everywhere. I used a scrub brush and some old (but clean) rags, and made it at least presentable, although the seats are pocked with cigarette burns. I then moved onto the windows and interior panels, I ended up using 91% rubbing alcohol to remove the tar/nicotine from the surfaces. Why people would ever smoke in their car is beyond me, it holds onto the smell worse than anything, and severely hurts the resale value. I have never smoked in any of my vehicles and I never let anybody else smoke in them either. I would like some advice on removing the odor from my car (right now I am just keeping some strong air fresheners going), and what products you have used to clean carpets/upholstery. I have a Hoover carpet shampooer with a hand held tool. I am still getting brown/yellow tar/nicotine off of the dash when I clean it. I really wish there was a way to undo the damage smokers do to a vehicle. Also, what can I use on the dash/plastic trim/steering wheel to remove the film/dirt buildup? I dont want to damage it, but I can see a dirty film even after wiping everything down with alcohol.