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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 confirms four-cylinder Boxster, Cayman replacement for US

Those who've been anxiously awaiting the return of the four-cylinder Porsche will be glad to know that the wait is almost over. What's more, the quad-pot Porsches won't be kept away from US showrooms but will form an integral part of the company's North American strategy. Confirmation comes courtesy of Automotive News, which spoke to the company's chief executive Matthias Muller about its return to four-cylinder power. "First of all, we will have it in the Boxster and Cayman successor," Muller told AN. "And then we will see how it works and how successful it is and how the customers will react on that, and then we will take the next decisions." The model to which Muller refers is expected to be the 718 – a new line taking the place of the Boxster and Cayman, ostensibly allowing Zuffenhausen to start from scratch rather than "downsizing" the engine on existing models. The new range is anticipated to launch sometime in the middle of next year. Porsche is currently offering a 2.0-liter inline-four with 234 horsepower in the Macan (which we get with V6s) for certain markets overseas, but the 718 is expected to get a new flat-four 2.0- and 2.5-liter displacements with output edging up to 395 horsepower. The last time Porsche offered a four-pot in the US was with the front-engined 968 that wrapped up production two decades ago, but it hasn't offered a boxer four since 1976.

Porsche 918 Spyder officially priced from $845K, Weissach package $84K more

Porsche has released official pricing for its entire lineup of 2013 models, which just happens to include the upcoming 918 Spyder hybrid supercar. The 795-horsepower advanced-technology-lab-on-wheels is now officially confirmed to have a starting price of $845,000 in the US, which is the exact amount we were told earlier when we had the opportunity to ride shotgun in some 918 Spyder pre-production test vehicles.
What we didn't know at the time was the cost of the Weissach trim package, which is a high-performance upgrade to the standard vehicle that includes the deletion of some interior amenities and addition of lighter-weight carbon fiber appointments, magnesium wheels, flame-resistant upholstery, racing belts and aerodynamic aids - it's meant for track-going folk who intend to use their 918 Spyders as God, country and manufacturer intended.
All told, the Weissach package should drop the 918 Spyder's curb weight by some 80 pounds, while also lightening your wallet of an additional $84,000 - the car's MSRP with the Weissach package is $929,000. These prices don't, however, include destination charges, which, for something like the very limited edition 918 Spyder (only 918 will be made), could very well cost considerably more than your average Porsche.