While the competition scrambles once again to play catch-up, Mustang momentum continues to grow with the introduction of the uniquely styled, Mustang GT/CS – or “California Special.”

The Mustang GT/California Special is a full, stand-alone option package on the 2009 Mustang. Much like the 1968 GT/CS that offered Mustang buyers more aggressive styling that was “Inspired by the Shelby GT,” the new California Special also draws some cues from the 2007+ Shelby. What’s more, it offers the kind of limited-production exclusivity that has made the original California Special such a big favorite with Mustang collectors over the years.

The GT/CS was originally a limited-production 1968 Mustang coupe fitted with Shelby Mustang dress-up pieces and sold only though dealerships in California. It was available with any engine, and either with or without the GT option. The 2009 California Special can be ordered as either a coupe or convertible.

The 2009 version has an aggressive front fascia with an integrated chin spoiler that sits 1.5 inches lower than the Mustang GT to provide a larger air opening for increased cooling performance. Familiar “California Special” style bodyside racing stripes run from the front fenders across the doors and fade-out at the end of the door.

Out back, a unique rear fascia styled with less “tuck-in” features a lower air-diffuser design that is similar to the rear of the current Shelby GT500 – itself inspired by the rear diffuser on the Ford GT supercar. As an added touch, the dual exhaust system on the new Mustang GT/CS sports bright, rolled tips for a cleaner, more refined appearance. The car will also come standard with the Mustang GT’s optional 18-inch polished aluminum wheels and performance tyres. Those seeking further differentiation can even add a hood scoop by ordering the GT Appearance Package.

Exclusive touches carry over to the inside of the new California Special, as well. Starting with the array of bright-polished and satin-aluminum finished items in the Interior Upgrade Package (which is required to order a Mustang GT/CS), the cabin comes dressed in either Dove or Parchment environments, including black leather seats with unique Cal Special Dove or Parchment “GT Leather” inserts. Plus, matching front floormats include special Mustang badging to further distinguish the GT/CS interior.

The 2009 GT/CS is available on the GT Premium Coupe or Convertible in Vista Blue Metallic, Performance White, Dark Candy Apple Red Metallic, Vapor Metallic and Black exterior colours only.

There’s even more style under the hood of the new California Special: The Mustang GT’s 300-horsepower 3-valve 4.6-litre V8 gets treated to a unique engine cover that gives the engine compartment the kind of dressed-up look that you'd only expect to see at custom car show.