2012 Porsche Cayenne on 2040-cars

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Porsche GT division rules out AWD, SUVs

Any German automaker worth its lap times needs a performance division. Mercedes has AMG, BMW has the M division, Audi has Quattro GmbH with its S and RS models... even Volkswagen has its R line of hot hatches. And though Porsche is a performance automaker unto itself, even it has a performance division. It's called Porsche GT, and though it's been branching outside the 911 range lately, don't expect it to wander too far. According to Car and Driver, which spoke recently with Porsche GT boss Andreas Preuninger and R&D chief Wolfgang Hatz, there are limits to what the division will do. And while those limits may have been broadened to include technologies like turbocharging and dual-clutch transmissions, they won't stretch as far as all-wheel drive. Take a look at the previous-generation 997 and what separated the 911 GT2 from the 911 Turbo was principally its all-wheel-drive system. Porsche GT isn't planning on doing a GT2 this time around – the new GT3 RS occupying that territory on its own – but the next generation (whether it wears the number 2 or 3) will likely go turbo along with most of the rest of the 911 family. The exclusion of all-wheel drive from the Porsche GT parts bin also means that the division won't be taking on the company's SUVs like the Cayenne and Macan. So the Cayenne GTS will be as extreme as it gets, taking on the likes of the BMW X5 M, Mercedes GL63 and Audi SQ5 without the help of Zuffenhausen's racing department. We can't expect the PDK to stick around though, so to speak. Though the new Cayman GT4 packs a manual transmission, the 911 GT3 and GT3 RS have dual-clutch gearboxes. Moving forward, Preuninger says they'll leave it up to prospective customers to decide which type of transmission they'll build into their most extreme performance models.

VW internal investigation finds 'no evidence' against suspended engineers

Volkswagen is still working out the chain of events that led to emissions-evading software being installed in 11 million diesel vehicles worldwide and deciding who was responsible for the treachery. So far, the German automotive giant's internal investigation hasn't publicly named many suspects, and three suspended executive-level engineers have been found not to be culpable in the wrongdoing, according to an anonymous insider speaking to Reuters. VW knows that the software began being installed in the EA 189 engine in 2008. The internal investigation has found that the emissions-evading tech was created because the powerplant was found to fail US standards. Plus, the diesel mill wasn't meeting cost targets, according to Reuters. The automaker responded by suspending over 10 employees, but three top engineers among them might not have been involved. Those put on leave include Heinz-Jakob Neusser from VW, Ulrich Hackenberg from Audi, and Wolfgang Hatz who led Porsche's research and group-wide engine development. The internal detective work hasn't turned up any evidence against these three men. In addition to VW's own inquires, government investigators in both the US and Germany are taking a serious look into the company's actions, too. So far, the automaker is setting aside about $7.3 billion to pay to fix the vehicles with the evasive software. Depending on what authorities find, the costs could grow quickly. Beyond the financial implications, the scandal has led to a serious shakeup in VW's corporate structure. Related Video:

Watch MotorWeek review the last great air-cooled Porsche 911

These days air-cooled Porsche prices are blasting through the roof, and the 993 gets much of that love among collectors as the last generation before the 911's switch to water-cooled design. MotorWeek's latest Retro Review now looks back at the 1996 911 Targa. The coupe came from a brief period when the 911s were the only models in the brand's lineup, but the company made sure those cars were perfect. The point of Porsche's Targa models is to combine the open-air driving of a convertible with a security of a coupe. In this case, the engineers came up with a massive glass panel that slid into the roof at the touch of a button. The design still allowed for rearward visibility but created a giant opening to allow the sunshine in. The solution isn't as awe-inspiring to watch as the Transformer-like metamorphosis of the latest 911 Targa, but it gets the job done in a very unobtrusive way. As air-cooled values continue to creep upward, it's fascinating to hear how contemporary reviewers critique the cars. In this case, the 993 lives up to the promise of being the ultimate evolution of the original idea behind the 911. MotorWeek even calls the coupe "simply one of the best road cars ever made." Check out the video to find out why. Related Video: