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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.

Gemballa reveals new Porsche 991-based GT convertible

Gemballa went through the ringer last year, but rebounded with products that signal a complete turnaround. The latest is the recently-released Porsche 911 Carrera S with a Gemballa GT aerodynamics and technology package. Aero-wise, it includes carbon fiber additions beginning with a front bumper wearing the classic Gemballa air intake design and a lower, angrier splitter. New side skirts run from wheel to wheel, the final piece being a rear bumper in three sculpted horizontal sections featuring a rear diffuser tucked between six rectangular exhaust tips.
No engine mods have been made, but the technology part of the tune - springs that are 30 millimeters shorter yet still able to work with the PASM system - is claimed to make the car faster. Bringing things to a halt is a new Brembo brake system hiding behind 21-inch GForged wheels that are lighter than Porsche's standard 20-inchers.
The Gemballa GT aero kit runs €19,860 ($26,070 U.S.), which includes paint and installation if you happen to be in Germany, and we're assuming that includes the suspension modification, brakes and sport exhaust. The GForged wheels are another €9,895 ($12,989 U.S.) depending on your choice of tire. Check out the press release below for more info, and the photo gallery above for all the angles.

German judge 'inclined to dismiss' hedge fund lawsuit against Porsche

Last year, around two dozen investors, including hedge funds, leveled a 1.4 billion euro ($1.95 billion at the time) lawsuit against Porsche in connection with the automaker's attempted takeover of Volkswagen in 2008. The Stuttgart Regional Court dismissed the case. Around 19 of those plaintiffs are heading back to court to appeal the ruling and still hope to get 1.2 billion euros ($1.4 billion). However, according to one German judge, the chances for success aren't any better this time around. "On balance it's our view that we consider the lawsuit, or the appeal, to be unpromising for several reasons," Gerhard Ruf, a judge in Stuttgart, said to Reuters. "We are inclined to dismiss the case." The court's ruling on the appeal will be announced on March 26. The investors' case hinges on Porsche's strategy surrounding the botched takeover. The sports car maker said that it wasn't trying to control VW, when in fact it was. These hedge funds had bet against Volkswagen stock, but the share price surged when Porsche's plan inevitably came to light. Investors have sued the sports car company multiple times since then in attempts to recoup billions of dollars. However, none of the lawsuits have been successful, whether attempted in the US or Germany. Former Porsche CEO Wendelin Wiedeking and and CFO Holger Haerter might still stand trial for the alleged stock manipulation, though. News Source: ReutersImage Credit: Matthias Rietschel / AP Photo Government/Legal Porsche Volkswagen lawsuit hedge funds porsche lawsuit