So our '11 Denali is totaled. We gave it up today. Looking for another one for the family. One of the things I like for my wife is the All Wheel Drive. I am wondering what models and/or trim packages come with AWD - or does it depend on whether it was an option added. I will be looking for a new (to us) one and I think I'd like to stick to this range of '07-'14 and would like AWD. Do I need to stick with a Denali or Escalade? or do Tahoes have AWD. Or do I just have to ask every time I want to look at one to see what it has? Thanks for the help!