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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.

How the 2016 Porsche 911 Carrera S falls short of perfection

We know Harry Metcalfe loves a good Porsche 911. After all, he's shown off his personal 1989 Porsche 911 Turbo and 993 GT2 replica in previous videos. However, he can't seem to muster so much passion for the forced induction engine in the 2016 911 Carrera S. The chassis impresses him, but in Metcalfe's latest clip, he explains why he's not a huge fan of the new powerplant. Before any actual driving, Metcalfe takes a thorough walk around the new car where he goes to the unusual trouble of using a magnet to show which parts are steel and which are aluminum. Remember, though, this is a 911. So, this latest refreshed model, just like all previous remodels, isn't all that aesthetically different from the previous version. So, Metcalfe's real focus here is on how it drives. He comes away with mixed impressions. Metcalfe loves the 2016 911's handling, especially the directness from the rear-wheel steering, but he isn't in love with the new engine. At least with the seven-speed manual, he complains of turbo lag below 3,000 rpm. He also misses the direct throttle response from the previous naturally aspirated unit and doesn't think the turbocharged mill's fuel economy is very impressive. Take a ride with Metcalfe to get the full experience and intriguing take about the biggest change in more than a decade for the iconic 911. If you can't get enough Porsche-flavored goodness, click here for our own First Drive report on the quintessential sportscar. Related Video:

Porsche Cayenne diesel V8 may not be long for this world

Goodbye, Porsche Cayenne V8 Diesel. We hardly knew ye. Nor did the Europeans, apparently. Porsche's V8 oil burner is still on the European model list for the Cayenne SUV, but the mill won't go through the likely pricey process of being updated to adhere to new and stricter European emissions standards, Just-Auto says. A Porsche spokesman confirmed to the publication that it's a fairly complicated process to update the diesel V8 to be so-called "Euro-6 compliant." With Cayenne diesels selling in relatively low volumes anyways, the German automaker might just dump the V8 diesel altogether, as it'd be quite cost-ineffective to make the necessary upgrades. The V8 diesel was a 4.1-liter engine that delivered 385 horsepower in addition to what sounds like a little too much exhaust for European clean-air regulators. While that's a pretty powerful profile, the most recent gas-powered V8 for the Cayenne delivers about 570 horsepower, so the diesel engine won't likely be missed by European auto enthusiasts. Besides, there's still the V6 diesel that's also sold in the US. That's a 4,800-pound beast that moves from 0 to 60 miles per hour in about seven seconds and gets a relatively (for diesels) modest 20 miles per gallon city. For those who are curious, Autoblog's First Drive review of that model can be found here.