So im kind of torn right now. I currently own a 2006 XK. It has its pros and cons. Love the wide body and all the space on the inside but the mpg's are garbage. I've been averaging about 12.8 city. I previously owned a 2005 Grand Cherokee prior to the Commander and loved it. I understand the Grand Cherokee isn't that much better on fuel but I definitely wasn't at the pump as much as I am now. Both vehicles had the 4.7L V8 also. There's also a lot more mods you can do to the Grand Cherokee over the Commander as well. I got rid of the GC due to all the electrical issues I started to have after 125k miles. I wont trade for another few months but was curious to everyone's opinions.