Good deal on 2007 Patriot and mpg on 4x4
I am very interested in purchasing a Patriot, we have a '48 cj and a '97 tj and a---- Toyota Highlander, don't hate me. I would like to get better miliage than the Highlander, which is my every day car, 19-20 mpg with mixed driving. A local dealer has a new 2007 Patriot 4x4 Limited for $20,500 off from the sticker of $25,000-+.
First question- Is this a good deal?
Second question- What mpg should I expect on mixed driving, think its an automatic, haven't seen yet?
Third question- What are the differences on the base models of the 2007 and the 2008?
thanks for your assistance.