Dude,
First you knock the visibility, I responded that based on my personal experience of owning a Durango, a 69 Mustang, and a Magnum RT, that the visibility in the RT is exceptional. Then you move to the gas issue.
In my 2005 Dodge Magnum RT (Hemi Engine), I get 23-24 mpg on the freeway if it's long distance and I don't exceed 72 mph. In the city/combined, the worst I've gotten even when I hot rod it, is 17.9 mpg. Not bad for a 2 ton wagon with 340 hp, 390 lbs of torque.
Now instead of constantly complaining about the Magnum, why don't you go buy a standard transmission PT Cruiser Wagon, or an econobox like the Hyundai Santa Fe, or some other fuel efficient 4 banger.
Please don't get me wrong, the only reason I respond is not to shut you up, or any of that flaming type non sense, I respond only because I think you are sincerely deliberating over buying a vehicle and that you needed that final nudge to shit or get off the pot! If I'm wrong, please forgive me.