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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.

Updated Chevy Silverado spied, possibly with aluminum components

Chevrolet is readying a refresh for its trusty Silverado pickup, and these spy shots give us our first glimpse at what might be in store. The front and rear fascias of this prototype are covered, obscuring some styling tweaks (with LED accents up front). More interestingly, our spies suggest that many of the Silverado's body components could move to aluminum with this mid-cycle update. The hood will go from steel to the lighter alloy, and it's possible the front fenders could benefit from the weight-saving material, too. Ford's latest F-150 is extremely aluminum-intensive, and by switching the construction, 700 pounds was trimmed off the truck's weight. We've already heard that General Motors is working with a similar plan for its next-generation fullsize trucks. Beyond that, expect the smaller 5.3-liter V8 to ditch its six-speed automatic transmission in favor of the eight-speed unit that's already mated to the larger, 6.2-liter V8. Neither transmission will stick around very long, as the trucks will likely adopt a 10-speed automatic around 2017. Look for the updated Silverado to debut later this year, likely as a 2016.5 model.

GM invests $175 million in Chevy Camaro factory

General Motors just keeps rolling out portions of its $5.4-billion plan for factory upgrades over the next three years. In the latest announcement, the automotive giant is putting $175 million into the Lansing Grand River Assembly Plant for improvements to build the 2016 Chevrolet Camaro. The investment brings new equipment to the plant to build the pony car. An upgrade is needed to support Camaro-specific colors like Summit White, Bright Yellow, and Red Hot, and the factory is also getting two robotic framers. A second shift of 500 workers is resuming in Lansing later this summer to produce the model, as well. So far, GM has announced allocations for $2.8 billion of the $5.4 billion in upgrades. The investments include $1.2 billion to improve pickup production, $439 million for a paint shop for the Corvette, and more new equipment at other plants too. Lansing Grand River Plant Tools Up for 2016 Camaro $175 million investment enables production of lighter, more powerful model 2015-05-28 LANSING, Mich. – A $175 million investment for new tooling and equipment for the sixth-generation Chevrolet Camaro, and the return of hundreds of workers to build America's best-selling performance car for the last five years, was announced today. The facility improvements include three new paint systems for Camaro-specific colors: Summit White, Bright Yellow, and Red Hot. The investment also includes installation of two robotic framers, which allow better dimensional control to provide a more precise drive experience. The Lansing Grand River Assembly Plant will resume a second shift of 500 jobs in late summer. The all-new Chevrolet Camaro was introduced on Detroit's Belle Isle on May 16. The current generation Camaro has been America's favorite performance car for five consecutive years, attracting both long-term Camaro fans and new buyers to Chevrolet. To improve on that success, the sixth-generation Camaro elevates every aspect of Camaro with a suite of new technologies, even higher levels of performance and fuel economy, and a leaner, more athletic design. "I may be the luckiest mayor in America today," said Lansing Mayor Virg Bernero. "Gearing up for full-scale production of the legendary Chevy Camaro is a new high point in the more than two decades of extraordinary partnership between the City of Lansing, General Motors and the UAW.