The M/T article has the HP & torque #'s wrong. They are using Ford's preliminary data from several months ago. M/T #'s 300 HP @ 6,000 RPM 315 lb. ft @ 4,500 RPM The latest version of the '05 Mustang Dealer Order Guide says: 300 HP @ 5750 RPM 320 lb. ft @ 4,500 RPM As far as comparisons to the Mach 1 go, from Ford's website: http://www1.forddirect.fordvehicles...State=ConfigPage&xefrProd=1620193&statetoken= Then click on "See all standard features" The Mach 1 is listed at: 305 HP @ 5,800 RPM 320 lb ft. @ 4,200 RPM So the Mach 1 engine is rated 5 HP more, but it has the same torque rating. Yes I know that the Mach 1 is underrated, but the first dyno #'s for the '05 GT indicate that it is also underrated. The Mach 1 appears to really have 325 - 330 HP, It also looks like the '05 GT really has 320 - 325 HP. An ATX '05 GT should be faster than a ATX Mach 1 off the line because it has a 5 speed trannie with a much shorter 1st gear (3.23 vs 2.84). But the Mach 1's higher redline will close the gap down the track. The bottom line is that an '05 GT will give you similar straight line performance to an '03 - '04 Mach 1, but on regular gas instead of premium. By the way I have nothing against the '03 - '04 Mach 1's. I love them and came very close to buying a used Azure Blue '03. I just couldn't justify it knowing that sooner or later I'd be getting an '05 or '06 GT or SE. I consider the Mach 1 the best of the SN95 Mustangs. I love the wheels, the overall look, the shaker the better seats, brakes, mufflers etc. etc. But as good as the Mach 1 is, the '05 GT and its follow on SEs will be better.