Porsche is going to Germany with two editions of the 911 model: 911 Turbo and renewed GT3 RS. Both of the vehicles are claimed to have great fuel-efficiency, however, the actual numbers are kept in secret till the 2009 Frankfurt Auto Show.

The 2010 Porsche 911 Turbo has a 3.8-liter flat-6 boxer engine which outputs 494 horsepower and delivers 516 pound-feet of torque. The manufacturer is proud to point out that the CO2 emissions in the new car are reduced by almost 18 percent.

A lot of option features include Sport Chrono Package Turbo that has dynamic engine mounts, three-spoke steering wheel with gearshift paddles and Porsche Torque Vectoring, a system that has mechanical limited-slip differential that provides power between rear wheels.

Porsche 911 GT3 RS has the same engine which provides 450 horsepower. The automaker says that the car is “the definitive track-ready street-legal 911”. If you look closely, the track features are really obvious: six-speed manual transmission has shorter ratios and shorter gearshift travel, the engine sits on dynamic mounts that automatically adjust damping and stiffness to speed and driving conditions, exhaust system is made out of titanium, and Porsche Active Suspension Management lowers the body of the car for better track driving.

Both of the cars go to the dealerships next year and their prices start at about $132,800.