Porsche today unveiled details of its most audacious model yet, the 2010 911 GT3 RS. The new model will be officially introduced September 17th at the Frankfurt Motor Show. Like the engine featured in the GT3, the RS bumps displacement from 3.6 to 3.8 liters. It now delivers 450 horsepower from the naturally aspirated powerplant, reaching a stratospheric 8500 rpm redline. The 15 additional horsepower over the base GT3 brings total output to 118 hp per liter from the six cylinder boxer engine. Even with all this raucous performance, Porsche claims the RS is fully suitable for everyday use, not simply for the track.

Power for the RS is routed through a six speed manual transmission with shorter gear ratios than the GT3 to effectively increase response at all RPMs for track use. Handling has been improved by using Porsche’s Active Suspension Management (PASM) technology, dynamic engine mounts, and an optional light-weight lithium ion battery to replace the traditional lead-acid type. The engine mounts change in their stiffness and damping effect to improve the connection between the engine and the body, allowing for stiff track use as well as for a more comfortable cruising mode. The lithium ion battery option will save 22 pounds when replacing the lead-acid battery.

As far as the exterior goes, this is definitely the most audacious Porsche yet. The orange wheels and graphics are highly noticeable, continuing the tradition of RS models. Also updated are the front and rear fascias, wider front and rear tracks, and a new carbon fiber wing on the tail attached with aluminum mounts. The light-weight color-matching wheels are fitted with 245/35 ZR 19 tires up front and massive 325/30 ZR 19 tires on 12 inch wheels in the back. Underneath, the RS sports a weight reducing titanium exhaust system. The GT3 RS will go on sale in the spring of 2010 and pricing will begin at $132,800 in the U.S. Pictures are below the video.

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