We're not too sure about everything that goes around the engine and drive train, but nobody is going to argue with the guns this car is packing. A stroked SVO 351W V8 good for 392 cubic inches, two, count 'em, two Rotrex superchargers feeding two air-to-air intercoolers and firing up for over 830 HP and 770 lb.ft. of torque. That monster drives a Tremec 5-speed with a set of steering wheel mounted paddle shifters which cranks a Mittler Brothers 9" rear end. Really damned impressive.

It's all the other stuff that has us down. While it does sport a tube frame and a hidden roll cage, they managed to duct and reshape a little too much of the car. And while we know the mesh is high quality, it just has a certain Pep boys feel to it. The current Mustang headlights are worked into the nose, and we really can't complain too much about them, but that seems like a weird choice. And don't get us started on all the gee gaws and gadgets in the interior. A cabin should be an office and the business should be driving, not fiddling with a 3000W kicker sounds system and a 10.5" LCD screen. Nonetheless, this is a damn impressive piece of machinery, even if it needs to have a couple hundred pounds of electronics garbage tossed to the curb. Obsidian SG-1

Now that 1,000 hp is the new 500 hp, a 900 hp Mustang Fastback may not carry overwhelming numerical firepower. But the Obsidian SG-1's allure is in the execution. Sporting a novel intake system for its dual superchargers and twin intercoolers, the Coupe-R merges old muscle with new tech, for a result that doesn't seem retrograde or neutered-modern. More than 10,000 hours of work by CoupeR Design and Autoworks International went into the build, which included major engine, transmission, cosmetics and electronics mods. [Gallery] – Mike Spinelli

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