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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:

Winterkorn steps down as CEO of Porsche SE

Martin Winterkorn's departure from all things related to the Volkswagen Group is nearing completion. After having stepped down as chairman of the automaker's executive board nearly a month ago in the wake of the automaker's diesel emissions scandal, he's now leaving the direction of the company's principal shareholder, as well. After VW acquired Porsche (the automaker) several years ago, and in turn was principally acquired by Porsche (the holding company), the latter installed Winterkorn as its chief executive officer in order to cement ties between the parties. He's served as chairman of the executive board (German-speak for CEO) at Porsche Automobil Holding SE ever since, but he's now officially resigned from that position. In his place, the holding company has named Hans Dieter Potsch as its new chief exec. Potsch was also recently named as chairman of the supervisory board of the Volkswagen Group, having served until now as CFO of both VW AG and of Porsche SE. Winterkorn's principal successor at the helm of daily operations at VW is Matthias Muller, formerly CEO of the Porsche auto brand and now CEO of the entire VW group. The development brings Winterkorn's exit closer to completion. However the departing executive still, for the time being, remains at the head of group divisions Audi, Scania, and Truck & Bus GmbH. We don't expect it will be much longer, however, before he formally resigns from those chairmanships as well. Related Video: Porsche SE: Prof. Dr. Martin Winterkorn ceases function as member and chairman of the executive board Successor as chairman will be chief financial officer Hans Dieter Potsch Stuttgart, 17. October 2015. Porsche Automobil Holding SE, Stuttgart ("Porsche SE"), reached an agreement with Prof. Dr. Martin Winterkorn that he ceases his function as member and chairman of the executive board of Porsche SE by the end of October 31, 2015. Dr. Wolfgang Porsche, chairman of the supervisory board of Porsche SE, thanked Prof. Dr. Winterkorn for the successful work in previous years: "Prof. Dr. Winterkorn assumed office as chairman of the executive board of Porsche SE in a difficult situation. He played a significant role in transforming our company into a highly professional investment holding. I would like to express my gratitude on behalf of the entire supervisory board." Hans Dieter Potsch, chief financial officer of Porsche SE, was appointed by the supervisory board to succeed Prof. Dr.

Is the skill of rev matching being lost to computers?

If the ability to drive a vehicle equipped with a manual gearbox is becoming a lost art, then the skill of being able to match revs on downshifts is the stuff they would teach at the automotive equivalent of the Shaolin Temple. The usefulness of rev matching in street driving is limited most of the time – aside from sounding cool and impressing your friends. But out on a race track or the occasional fast, windy road, its benefits are abundantly clear. While in motion, the engine speed and wheel speed of a vehicle with a manual transmission are kept in sync when the clutch is engaged (i.e. when the clutch pedal is not being pressed down). However, when changing gear, that mechanical link is severed briefly, and the synchronization between the motor and wheels is broken. When upshifting during acceleration, this isn't much of an issue, as there's typically not a huge disparity between engine speed and wheel speed as a car accelerates. Rev-matching downshifts is the stuff they would teach at the automotive equivalent of the Shaolin Temple. But when slowing down and downshifting – as you might do when approaching a corner at a high rate of speed – that gap of time caused by the disengagement of the clutch from the engine causes the revs to drop. Without bringing up the revs somehow to help the engine speed match the wheel speed in the gear you're about to use, you'll typically get a sudden jolt when re-engaging the clutch as physics brings everything back into sync. That jolt can be a big problem when you're moving along swiftly, causing instability or even a loss of traction, particularly in rear-wheel-drive cars. So the point of rev matching is to blip the throttle simultaneously as you downshift gears in order to bring the engine speed to a closer match with the wheel speed before you re-engage the clutch in that lower gear, in turn providing a much smoother downshift. When braking is thrown in, you get heel-toe downshifting, which involves some dexterity to use all three pedals at the same time with just two feet – clutch in, slow the car while revving, clutch out. However, even if you're aware of heel-toe technique and the basic elements of how to perform a rev match, perfecting it to the point of making it useful can be difficult.