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2016 Porsche 911 GT3 RS First Drive [w/video]

Imagine a regular Porsche 911 GT3 in your garage, parked next to a brand-new, no-options Boxster. Now imagine your garage with just a 911 GT3 RS inside. From a cost standpoint, you could have either for roughly the same amount of money. Trying to figure out if the RS goodies are worth the $50,000 over a standard 911 GT3 – roughly the price of that no-frills Boxster – might drive you mad. We're trying to suss this out at 120 miles per hour on the long downhill back straight at Road Atlanta. It's pouring. Rivulets of water are streaming across the track. Ahead, in a 911 Turbo leading the pack, is Le Mans- and Daytona-winning driver David Donohue. He's helpfully warned us to avoid nipping the curbing, since that's where water pools. Hydroplaning could end someone's day. Through the blinding spray, Donohue mercifully has reduced the pace. There's enough speed to evaluate what the GT3 RS does well, which is essentially everything. There's also enough time to figure out what sort of sports car this is. Horsepower swells to an even 500 and torque to 338 pound-feet – bumps of 25 hp and 14 lb-ft over the GT3. As is fitting and proper for the traditional sports car par excellence, at the top of the large and expensive 911 heap is the GT3. While the base is shaken by the encroachment of turbocharging on basic 911 models, the summit is, like mountain air, all-natural. The GT3 was subject to a beyond-galling recall due to faulty con-rods with a penchant for ventilating crankcases and starting catastrophic fires, but storms crash upon every peak. Progress is inevitable for German engineers. The GT3 RS is the 911 reforged in those embarrassing fires. The GT3 itself was a false summit, but the RS is the real deal. Underneath the very purple bodywork, this is a lither and more athletic thing than the already superb GT3. Lightweighting is accomplished with a healthy dose of carbon fiber on the engine cover and the frunk. The roof, with a slick-looking depressed slash running longitudinally, is made of magnesium. That serves to lower the center of gravity, Porsche assures us. Even the rear silencer is made of titanium. In total, the RS is 22 pounds lighter than the GT3 it's based on – seemingly small gains considering all the exotic materials, but less so considering what's been added back. The RS is also more powerful, thanks to a 200cc displacement increase.

Patrick Dempsey to take break from racing after career season

The popular American actor has decided to take a step back from racing to focus on his "family and acting career." Outside of motorsports, Dempsey's tenure on the hit TV show Grey's Anatomy as Derek Shepherd ended last year, as did his 16-year marriage to makeup artist Jillian Fink. They have since reconciled. Reaching the top step of the podium During that same year, Dempsey finally reached the top step of the podium in his professional sports car racing career, winning the Fuji round of the 2015 FIA World Endurance Championship. Earlier in the season, he placed second in class in the prestigious 24 Hours of Le Mans endurance classic. His Dempsey-Proton Racing Porsche squad ended 2015 sixth in the GTE-Am standings. Along with four starts at Le Mans between 2009 and 2015, Dempsey competed in a total of 68 races between Grand-Am, ALMS and the recently formed hybrid of the two -- The IMSA WeatherTech SportsCar championship. He scored nine podiums, which includes high profile races such as the Rolex 24, Sebring 12 Hours and Petit Le Mans at Road Atlanta. Patrick Dempsey to focus on "family and acting" in 2016 But he will not add on to his growing racing resume this year. Dempsey has released a statement, announcing that he will not compete in any events this season, although his team will continue to do so. My motorsports journey has been a rewarding one and allowed me to meet so many interesting people. While the focus so often is the performance of the car, in reality it is all the various personalities, from team mates to competitors to officials to fans that I remember the most. I have loved being part of part of different teams and sharing the experience with so many great friends. I want to thank everyone who made this possible and helped me along the way. I also wanted to especially thank the fans for their support and friendship. None of this would happen without you buying the tickets and attending the races, so I am grateful for that investment in my passion. It makes me especially happy to see how many people have become race fans during my racing career. At this point in my life, after an amazing season thanks to my friends at Porsche and TAG Huer, I need to take a step back and focus on both my family and my acting career. Dempsey-Proton Racing will continue on racing a Porsche 911 RSR in the World Endurance Championship season. I hope my schedule permits me to enjoy some race weekends at least as a team owner.

Audi will submit emissions fix for 3.0 TDI V6 to EPA and CARB

Audi will develop a software update for the emissions control system on Volkswagen Group's 3.0 TDI V6 and will submit the changes to the Environmental Protection Agency and California Air Resources Board for approval. If the government regulators accept it, the tweaks could end the emissions problems for an estimated 85,000 of these engines in the US in Audi, Porsche, and VW models. However, the stop-sale still covers these vehicles until further notice. Audi admits in its statement to failing to disclose three "auxiliary emission control devices" on the V6 to regulators, and US law considers one of these systems a defeat device. VW Group offered the engine in the US on the Audi A6, A7, A8, Q5, and Q7 since the 2009 model year. The mill was also available on the VW Touareg and Porsche Cayenne. The EPA filed a violation against the 3.0 TDI on November 2 because the agency reported that the engine's software contained a defeat device to circumvent emissions tests. The regulator recently extended that notice to cover these powerplants in the US from the 2009 to 2016 model years. Audi's statement vaguely estimates the price of this problem to be in the "mid-double-digit millions of euros," and the automaker could face financial punishment by regulators. "Determinations regarding potential penalties and other remedies will be assessed as part of the investigation EPA has opened in conjunction with the US Department of Justice," an EPA spokesperson told Automotive News. Related Video: Statement on Audi's discussions with the US environmental authorities EPA and CARB Auxiliary emission control devices (AECD) for US version of V6 TDI 3 liter engine to be revised, documented and submitted for approval Technical solution for North America versions from 2009 model year onwards to be worked out in conjunction with the authorities Audi will revise, document in detail, and resubmit for US approval certain parameters of the engine-management software used in the V6 TDI 3 liter diesel engine. That is the result of the discussions held between a delegation from AUDI AG and the US Environmental Protection Agency (EPA) and the California Air Resources Board (CARB). The updated software will be installed as soon as it is approved by the authorities. The three brands Audi, Porsche and Volkswagen are affected. Audi estimates that the related expense will be in the mid-double-digit millions of euros.