A premium SUV should be 4-wheel drive, but you can always specify. Steamboat is right along I-70, so you should have fewer issues than if you were on less well-maintained roads. It does help to have a V-6 at least as you go through the mountains due to the frequent ups and downs on the interstate.
You need to specify 4 wheel drive when you make your reservation.
I'm sorry I don't know the answer. I just switched to Enterprise from Hertz. It was my first time with them. I did get my choice of cars when I went there.
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