Hilarious!!!

Okay - to seriously answer your question and try to be remotely helpful (someone has to LOL).

Its a Mach 1 - not a Mach 3. And it has a 4.6 4v engine (same as 99 and 01 cobras) with a shaker hood and about 315hp or so...It also has a diff. colored wing and diff. wheels than a normal mustang and it doesn't come with IRS like the SVT cobra.

A stock Mustang comes with a v6 and 16 inch wheels now and about 190hp. A GT comes witha 4.6 2v V8 and 260hp - dual exhaust, gt bumper, etc.

A Roush Stage 2 is a GT in a sense. It has a Roush body kit, side exhaust, probably a cold air kit, and a lot of suspension stuff. I'm pretty sure its right about the same power level as a normal GT but looks better (in some people's eyes) and handles better.

The main differences between the 3 - Roush is probably the most expensive then the mach 1 and then the normal Stang.

The Mach 1 is the quickest of the 3 and probably the best buy IMO.

http://www.roushperf.com/html/rpp_mustangstage2.htm

http://www.fordvehicles.com/cars/mus...ance/index.asp

That should give you the info you need.