You might want to research the northstar engine a little more also. The Chevy Prizm gets no better than 28 mpg highway while the Cadillac STS, almost twice as heavy as the Prizm, gets 22 mpg highway. You truely under estimate the efficiency of the 32 valve DOHC V-8, if you don't understand what makes it run so well in the first place, but don't take it from me. Enjoy putting around in your daddy's little girl prizm with your knees wedged up under the dash, the seat belt jabbing you in the kidney, your head brushing the already hanging headliner while you rest your shen on the window crank, waiting for the heater to warm up on a lovely michigan winter morning while I'm sitting on heated leather seats reclined just enough to relax, listening to my premium Bose sound system while waiting for the heated side mirrors to defog (dont get me started on the comparison of the ride itself). Let's not even mention the fact that I drive no more than 50 miles a week, so ironically, I probably spend less on gas than you do. Yeah, I think I'll pay for those 6 miles each gallon, and while I'm at it, I'll see if I can get up to 120 (mph) before I merge onto the highway.