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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.

Porsche 959 Prototype started it all

While Porsche was unveiling the new Nürburgring-dominating 918 Spyder downstairs in Hall 3 here at the Frankfurt Messe, there was another Porsche supercar quietly and discretely on display upstairs in the same hall. That, of course, was the 959. But not just any 959: this was the original Gruppe B prototype.
The 959 was first developed as a rally car in the early 80s to compete with the likes of the original Audi Sport Quattro S1, Ford RS200 and Lancia Delta S4. But Zuffenhausen soon saw its potential as a production road-going supercar, emerging as a technological marvel to challenge the decidedly linear approach of the Ferrari F40. It still stands as a groundbreaking supercar in its own right, but also lead to the first all-wheel-drive 911 Turbo and set the stage for the Carrera GT and aforementioned 918 Spyder that followed to cap the top of the evolving Porsche range.
This original Gruppe B prototype, which presaged the production 959, packed a 450-horsepower 2.8-liter twin-turbo flat-six into an even sleeker form than the final version that followed. We caught up with it on display as part of a display of 80s German classics, of which this 959 prototype immediately stood out as the pick of the proverbial litter. Check out the hotness in the high-resolution image gallery above.

Porsche's former CEO Wiedeking to stand trial over VW-share manipulation

Former Porsche CEO Wendelin Wiedeking (left in the above photo) could potentially be facing some time in the slammer after all. The last we had heard, he and former Chief Financial Officer Holger Haerter (right) had avoided a trial in April due to a lack of evidence. However, an appeals court in Stuttgart has looked at the case again and overruled the earlier decision, finding that the executives should be tried for share manipulation during Porsche's failed attempt to take over Volkswagen in 2008, Bloomberg reports.
The judges in the appeal "list numerous indications that could suggest that there was a hidden decision to increase the stake as they could suggest the opposite evaluation by the lower court," said Stefan Schueler, a spokesperson for the court, in a statement cited by Bloomberg. Wiedeking and Haerter put out their own releases saying that there was no merit to the charges.
The prosecutors allege that Wiedeking and Haerter had a plan to buy up VW stock options in 2008 to take the automotive giant over but hid it from investors. The whole thing was a massive failure and eventually allowed VW the chance to acquire Porsche and forced the two execs to step down. In addition to the criminal investigation, hedge funds have attempted to sue the company multiple times in civil court for the same reason, but they have repeatedly failed.