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Production Porsche 918 Spyder images leak out of Chinese patent office

A few images of what looks to be the production Porsche 918 Spyder are here to say hello, courtesy of a patent office in China. If these provide an accurate look at what the hybrid supercar will look like, there are a few differences between it and the latest examples of the pre-production prototypes our spy shooters have seen.
The jerry-rigged turn signals inside the headlight enclosures and on the front fenders on the prototype are replaced with more polished units inside the headlamps located underneath the main beams. Behind that, the door handles have been swapped from horizontal latches on the door to vertical openings located just behind the door shutline.
We've also seen a Martini-liveried version of the 918 Spyder that has extra carbon elements that don't appear on this car. It was at the Nürburgring with carbon lips on the front fenders and another carbon element that hung from the rear fenders and ran down to the rear diffuser. When we saw the car on our Deep Dive piece, the front lips were gone but that rear piece remained, and we can't tell from the brochure and options sheet that we've seen so far what it comes with. The wheels from the concept and the green brake calipers, minus the polycarbonate covers, should be the standard fitment while the ten-spoke magnesium wheels will be a 29,750-euro (about $39,000 US) option.

Porsche 911 GT3 RS getting all-new atmospheric engine

Porsche surprised many of its most puritanical enthusiasts when it took a decidedly more usable approach with the current 911 GT3. But when the new GT3 RS debuts, it promises to be a much more extreme departure. And a big part of that comes down to the engine. At the Detroit Auto Show this week, Auto Express spoke with Porsche R&D chief Wolfgang Hatz – who also happens to be head of engine and transmission development for the entire Volkswagen group. Hatz revealed that Porsche has developed a completely new engine for the GT3 RS, and while previous rumors suggested the RS would go turbo to fill in for the lack of a GT2 (and make the most out of its displacement), Hatz confirmed that it will be naturally aspirated. Considering that Porsche rarely goes downwards when it comes to 911 engine displacement, only upwards, we'd expect the new RS to pick up where the previous 4.0 left off. The new GT3 RS is also expected to pack a more extreme suspension, aero and stripped-out interior, but those hoping for an old-school approach may be disappointed to learn that the new RS will (at least at launch) only be available with the seven-speed dual-clutch transmission – though a manual version could follow if there's enough demand. In a related development, Hatz also hinted that the Cayman GT4 could debut at the Geneva Motor Show in March, with an even more extreme approach than the previous Cayman R. The new top-of-the-line Cayman is reportedly being developed to comply with GT4 class racing regulations but be fully homologated for road use. Related Video:

Porsche 911 GT2 RS vs. Mercedes SLS AMG Black in battle of who can shred more rubber

We might be looking at the end of an era in European performance models. Mercedes-Benz is doing away with the SLS in favor of a rumored smaller and cheaper SLC, and Porsche has said that a new 911 GT2 isn't necessarily a sure thing, which means another 911 GT2 RS is even farther away. In its latest video, Evo's Jethro Bovingdon pits the ultimate versions of these German sports coupes against each other and finds two of the fastest cars the magazine has ever lapped around its track.
In one corner, there is the Mercedes SLS AMG Black Series that sits as the pinnacle of the company's halo model. It relies on the classic setup of a V8 mounted in front powering the rear wheels. On the other side, there is the 911 GT2 RS with a turbocharged flat-six mounted at the back, spinning the rear wheels. It was conceived to be Porsche's ultimate expression of a turbocharged 911, and while it's a few years old, Bovingdon shows that it's up to the task of racing a more modern rival.
Both of these rear-wheel-drive monsters are more than capable of some fantastically smoky power-slides, but they also show how great the last generation of sports cars was. Scroll down to check out the video.