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Porsche planning Cayman GT4, 700-hp Turbo S e-Hybrids

The old wisdom when it came to the Porsche lineup was that the Boxster and Cayman needed to be kept in line so as not to encroach on even the lower end of the 911 range. But with the latest versions of the compact roadster and coupe, that logic has gone out the window. Especially with the introduction of the latest GTS models (pictured above). But that's not the end of the story. According to Motor Trend, Porsche is working on an even more powerful version of the Cayman that could carry the GT4 badge, positioning itself along the same lines as the 911 GT3 and GT2 – only, you know, smaller. Although our sources at Porsche would, predictably, neither confirm nor deny the report, MT has it that power could come from either a turbo-four or a more powerful flat-six, mated to the beefed-up DCT from the latest 911 GT3. A similar version of the Boxster could bring back the RS Spyder designation. That's not all Porsche is said to have in store, though. Based on the engineering that went into the 918 Spyder, Porsche could roll out a new range-topping model for the 911, Panamera and maybe even the Cayenne, packing a version of the 918's PHEV powertrain. Slotting in above the existing Turbo S variants of each model line, the new flagship models could pack 700 horsepower or more and be designated e-Hybrid in similar fashion as the 918.

Porsche 911 spied looking like a Porsche 911

The 2017 Porsche 911 hasn't gone on sale yet and spy photographers have already snapped an early mule for the next-generation 911 due in calendar year 2018. It might be difficult to make out underneath the cobbled-together bodywork of the previous 991-version 911, but this one has a wider rear end that could be hiding the plug-in hybrid powertrain expected to come with the next big model update, perhaps codenamed 992. The strange white plug would be where owners plug the coupe in, according to this patent drawing. There have been rumors of a hybrid 911 coming for more than a year now, with some suspicious bits in a mule seen last year, and early prognostications being that Porsche is lining up the powertrain for the 911 Turbo to produce somewhere around 720 horsepower. That would make sense as the first stop for the learning and components of the 918 Spyder to trickle down to the 911 range. If Porsche migrated the 918's 156-hp electric motor unchanged into the 560-hp 911 Turbo, you're looking at a 716-hp monster that accelerates even more quickly. A hybrid 911 Carrera model would sit above the standard turbocharged engines. Elsewhere, the 992 model will come on the current MMB platform, and the exterior will be one of evolution, naturally. Interior upgrades will include a fully digital instrument panel. Or, going off the reservation, former Porsche chairman Matthias Muller said earlier this year that, "the high-speed high-tech laboratory of the 919 Hybrid will benefit all our future vehicles" in reference to expanding the Porsche model line to seven models. At the time, Bloomberg wondered if Muller was referring to the long-rumored Ferrari competitor Porsche has debated.

CARB has 20 days to confirm VW's 3.0-liter TDI emission fix

VW's diesel scandal has been in the headlines since last September, but solving the problem it proving difficult. Volkswagen Group has submitted a proposal to the California Air Resources Board (CARB) and the Environmental Protection Agency (EPA) to fix about 85,000 vehicles with the 3.0-liter diesel V6 in the US, Reuters reports. CARB now has 20 business days to test if the plan actually reduces emissions. If accepted, VW could finally begin a recall and end the stop sale on vehicles with these engines. In a statement, CARB pledged to, "respond following a thorough and complete review to make sure the plan addresses the presence of the illegal defeat device and follows the necessary environmental, vehicle and public health and safety regulations." Neither CARB nor the EPA outlined the proposed repairs, but Porsche CEO Oliver Blume already suggested the fix for the engine in the diesel Cayenne. Examples from 2013 and 2014 allegedly need a new catalytic converter and software update, and those from 2015 and 2016 only need the improved code. It's not yet clear whether this procedure would work for all models with the 3.0 TDI. While the EPA issued the notice of violation against VW's 2.0-liter four-cylinder diesel in September, the first one for the 3.0-liter V6 came in early November. By the end of the month, the agency broadened the scope to about 85,000 vehicles, including some examples of the VW Touareg, Audi A6, A7, A8, Q5, Q7, and Porsche Cayenne. The affected companies issued stop sales on new models with the engine. Audi eventually admitted to regulators that it didn't disclose three auxiliary emission control devices in the powerplant's code and promised to develop a software update to fix the problem. CARB gave the automaker 45 business days to submit the proposed solution. If accepted, this repair would allow VW Group to end part of the emissions scandal, but there's no guarantee the regulators consent to this solution. Just a few weeks ago, CARB looked at the automaker's plan to fix the 2.0-liter TDI and rejected it, claiming a lack of detail.