We've been shopping older Challengers and have noticed some have a really bad interior smell - maybe like a chemical-ish smell from the plastic or rubber, but not a burnt smell. Interesting thing is that when we were shopping a year ago for an older v6 model for our son, we experienced the same. This weekend we drove two models, both 2011, both leather interiors, both really clean. One didn't smell at all, and the other was bad. Sadly the smelly one is a one owner with STP and 63K miles, but that smell... the wife says no. Curious if anyone has that in their 2011-ish Challenger?