A Porsche 911 is almost always an object of desire. A fast 911 is even more so, but take a practically race-spec Porsche and give it a touch of nostalgia and you have a recipe for a tongue-out drool fest. Like its ancestor, the 1973 911 Carrera RS, the GT3 RS is modified to serve as a homologation model for racing. The GT3 RS takes the standard GT3 and goes a step further in distilling it to purpose for motorsport. The rear of the car is widened 44mm, and the body is lightened through the use of carbon fiber on the hood and the adjustable rear wing. Changes are also made to meet race-regulations, like the use of special rear wheel carriers and split rear-suspension wishbones. Peak output from the 3.6L boxer six is the same 415 hp, but the GT3 RS uses a unique, single-mass flywheel to interface the engine with the clutch and transmission. The GT3 RS will be offered in two standard finishes, black and silver metallic, and in two optional colors, orange and green. The graphics and wheels are offered in either orange or black to coordinate with the chosen paint scheme. The 911 GT3 RS will reach North America in the spring of 2007, and we're sure a few wealthy Porsche-o-philes will find the as-yet-unannounced price a palatable ransom for this street-legal racing machine embellished with nostalgia. Special thanks to Eric Bryant for the pictures you find on the post, here and after the jump.