Thats true, but up until the last few years, the 4.6 was one of the most advanced V8s ford had to offer. I hate that american companies are just now moving to high compression DOHC layouts that allow for much more power at much higher fuel efficiencies. There is a price difference, but its there for a reason. The mustang was still being offered with a straight axle, cheap plastic feeling interior, 2wd, and technology thats been around for 40 years under the hood. The S4 has AWD, full leather interior with classy-as-hell wood or aluminum trim, auto-levelling HIDs, in dash touch screen navigation, a suspension not designed for a tow truck, and an engine that manages a specific output of over 80bhp/L as opposed to the mustangs 65bhp/L. I'm not saying the Gt isn't a great value, especially now that they have the new 5.0 which will actually approach a respectable specific output of 80bhp/L. It just bothers me that domestic companies are so far behind in the technology field. I know some people aren't willing to pay the price difference, but when I had the choice of buying a new-to-me vehicle from the early 2000s, I picked ze germans over the good ol' USA because I can't find anything better than the feel of a german sedan built to cruise the autobahn.