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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 Cayman GT4 speeds back into view

We're all familiar with the succession of numbers that follow the letters GT on a hard-core Porsche 911: the GT1 that was Stuttgart's Le Mans contender in the late 90s, the GT2 that packs turbochargers but without the Turbo's all-wheel drive and excess weight, and the naturally aspirated GT3 that's the enthusiast's choice. But a GT4? That's something new, and exactly what Porsche has in store.
Spied testing in Germany once again is the upcoming GT4 version of the Porsche Cayman, set to supersede the existing GTS and take the place of the previous Cayman R at the top of Porsche's junior sports car range. This latest batch of spy shots doesn't show us much more than the last crop, but gives us a much clearer view at what promises to be the most hardcore Cayman to date.
As you can see, the Cayman GT4 packs a much more aggressive aero kit and rolling stock than any version we've seen to date. It's got a lip spoiler, big air dam and GT3-style vent in front of the hood, deep air scoops along the flanks, a set of spindly alloys packing oversized brakes, a diffuser with twin central exhaust tips around back and a rear wing that's likely to be replaced with a sleeker unit before the GT4 reaches production.

Five cursed and haunted cars

Any kid lucky enough to grow up in Detroit is familiar with the Henry Ford Museum. It's huge, full of shiny things and a great place to take a child and let them burn off some energy. After several field trips and weekend outings however, the dusty concept vehicles and famous aircraft tend to lose their punch for youngsters. As a fifth grader, I was already gazing on the museum's many gems with glassy eyes. On yet another school trip, we made our way to John F. Kennedy's death car, a gleaming black Lincoln limo. The aging volunteer docent told our little group something I had never heard before. "You know, this car is haunted. Several employees have reported seeing a gray presence right here," he said, pointing to the back passenger side seat. I perked up. Now here was something I had never heard before. A haunted car? Sure, it happened in Goosebumps, but this was real life. It made sense, in a way. Cars can be violent, emotional places. That's certainly the case with JFK's limo, as well as the other four cars on this list. And maybe those gut-wrenching deaths can permanently doom a car. 5. Archduke Franz Ferdinand's Graf & Stift Death Limo World War I tends to be a forgotten war, despite being pretty terrible in its own right and setting the stage for the entire 20th Century. The French forces, for instance, lost more lives in the first month of WWI than the US did in the entire Civil War. Everyone who has been through a freshman world history course knows the conflict started when Archduke Franz Ferdinand and his wife were shot by a Bosnian anarchist. The crazy thing is, Ferdinand had already avoided an attempt on his life that day, and was actually on his way to the hospital to comfort those who had been injured in the crossfire. One of the would-be assassins simply walked out of a cafe and saw his intended target sitting in front of him where the open-air limo had stalled. The archduke and his wife were shot through their heads and throats. Their deaths would not be the last caused by the limo. Throughout the war and into the 1920s, the limo was owned by fifteen different people and involved in six accidents and thirteen deaths, not counting the 17 million or so killed in the war triggered by the Archduke's assassination. The first person to own the car after the Archduke was an Austrian general named Potiorek, who went insane while riding in the car through Vienna.