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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.

5 reasons why GM is cutting jobs, closing plants in a healthy economy

DETROIT — Even though unemployment is low, the economy is growing and U.S. auto sales are near historic highs, General Motors is cutting thousands of jobs in a major restructuring aimed at generating cash to spend on innovation. It's the new reality for automakers that are faced with the present cost of designing gas-powered cars and trucks that appeal to buyers now while at the same time preparing for a future world of electric and autonomous vehicles. GM announced Monday that it will cut as many as 14,000 workers in North America and put five plants up for possible closure as it abandons many of its car models and restructures to focus more on autonomous and electric vehicles. The reductions could amount to as much as 8 percent of GM's global workforce of 180,000 employees. The cuts mark GM's first major downsizing since shedding thousands of jobs in the Great Recession. The company also said it will stop operating two additional factories outside North America by the end of next year. The move to make GM get leaner before the next downturn likely will be followed by Ford Motor Co., which also has struggled to keep one foot in the present and another in an ambiguous future of new mobility. Ford has been slower to react, but says it will lay off an unspecified number of white-collar workers as it exits much of the car market in favor of trucks and SUVs, some of them powered by batteries. Here's a rundown of the reasons behind the cuts: Coding, not combustion CEO Mary Barra said as cars and trucks become more complex, GM will need more computer coders but fewer engineers who work on internal combustion engines. "The vehicle has become much more software-oriented" with millions of lines of code, she said. "We still need many technical resources in the company." Shedding sedans The restructuring also reflects changing North American auto markets as manufacturers continue to shift away from cars toward SUVs and trucks. In October, almost 65 percent of new vehicles sold in the U.S. were trucks or SUVs. That figure was about 50 percent cars just five years ago. GM is shedding cars largely because it doesn't make money on them, Citi analyst Itay Michaeli wrote in a note to investors. "We estimate sedans operate at a significant loss, hence the need for classic restructuring," he wrote. The reduction includes about 8,000 white-collar employees, or 15 percent of GM's North American white-collar workforce. Some will take buyouts while others will be laid off.

Ford Mustang Bullitt, Cadillac ATS-V and profitable car companies | Autoblog Podcast #559

On this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Associate Editor Joel Stocksdale and Contributing Editor James Riswick. They talk about being behind the wheel of the 2018 Cadillac ATS-V, 2019 Ford Mustang Bullitt and 2018 Nissan Kicks. They also discuss the week's news such as Tesla and Ford both having profitable quarters, better than people were expecting. Not only that, but they talk about how the Camaro may be changing in the near future, plus the potential of Jaguar electric cars. The podcast then finishes with a Spend My Money segment in which we Autoblog editors help a reader choose a car to buy.Autoblog Podcast #559 Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown 2019 Ford Mustang Bullitt 2018 Cadillac ATS-V 2018 Nissan Kicks Tesla makes a profit Ford makes a profit Chevy has changes in store for the Camaro Electric Jaguars Spend My Money Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video: Podcasts Cadillac Chevrolet Ford Jaguar Tesla Coupe Performance cadillac ats-v ford mustang bullitt