1965 Chevrolet Corvette on 2040-cars

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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.

Let's Drive NYC is GM's car sharing program for the Big Apple

Under a new car sharing program offered by General Motors and others, a New York Minute will cost about 15 cents. GM is working with a luxury-apartment building owner and a parking lot operator to run a car sharing program in Midtown Manhattan. The program is called Let's Drive NYC and it was announced Thursday. Let's Drive NYC is being offered to residents of the Ritz Plaza, a 479-unit luxury apartment building near New York's Times Square. The program is being run with the help of Icon Parking Systems, which runs about 200 parking garages in Manhattan where the cars can be parked. GM is contributing eight Chevrolet Trax crossovers and two Chevrolet Equinox SUVs, and the automaker is slated to add more vehicles "later." Residents of the Ritz Plaza, which is owned by Stonehenge Partners, can make "periodic apartment lease payments" and in exchange receive electronic credits for three hours of driving a month. After those three hours are up, the drivers will be charged less than $10 an hour, or as much as $75 a day. The program was piloted earlier this year to some of the apartment's tenants. The program marks the second bit of car sharing news in New York within the past two months. In August, Mercedes-Benz and Smart parent Daimler announced that its Car2go car sharing service would expand into Queens and add about 100 Smart ForTwo two-seaters to the city's program. Car2go made its New York debut in Brooklyn last October and has attracted more than 27,000 members since then. You can take a look at Let's Drive NYC's press release below. GM Unveils 'Let's Drive NYC' Car-Sharing Program NEW YORK, Oct. 1, 2015 /PRNewswire/ -- Running an errand to a big box store or planning a weekend excursion are about to get easier for some Manhattan residents because of a car-sharing program revealed today by General Motors. It's the company's latest move to deliver urban mobility options to customers around the globe. Let's Drive NYC is available to eligible residents of The Ritz Plaza, a 479-unit luxury apartment building at Times Square in midtown Manhattan, owned and managed by Stonehenge Partners. Residents use a GM-developed mobile app to reserve a vehicle and access parking in one of 200 garages throughout Manhattan managed by Icon Parking Systems. The fleet currently includes eight Chevrolet Trax small SUVs and two Chevrolet Equinox compact SUVs, with more vehicles to be added later.

GM plans to restart production in Mexico on May 20

MEXICO CITY — General Motors is tentatively planning to restart operations at its auto assembly plant in the Mexican city of Silao on May 20, according to a message to workers seen by Reuters on Sunday, as the car industry prepares to exit the coronavirus lockdown. Separately, the president of GM's Mexican unit advised suppliers to prepare to resume operations. “We are now beginning a new phase given the Mexican governmentÂ’s official announcement earlier this week to consider the transportation manufacturing industry as essential for the countryÂ’s economy,” Francisco Garza, president ofGeneral Motors de Mexico, wrote in an email to suppliers dated on Friday that was viewed by Reuters. The reopening of the plant  in Silao would be a positive signal for the auto sector in North America, whose supply lines are highly interconnected between the United States, Mexico and Canada. The plant in the central state of Guanajuato has been idled for weeks due to the coronavirus outbreak. Workers had previously been told to plan to return to their jobs on May 18. A GM spokeswoman said the company could not confirm when it would restart operations at any of its facilities in Mexico because it is awaiting more guidance from the government. The message to the plant's workers came after the government on Friday clarified when the industry could begin easing restrictions imposed because of the health emergency. On Wednesday, the government said automakers could start going back into production from May 18. It then withdrew that advice and suggested the new start date would be June 1. Finally it indicated the sector, which forms the backbone of Mexican manufacturing, could begin operating as soon as next week if companies had the required safety measures in place. U.S. officials and its auto industry have pressed Mexico's government to get its factories open again because American operations depend heavily on parts from south of the border. However, some politicians are wary of opening too fast. Mexico registered its first case of coronavirus weeks after the United States and Canada and the toll of daily infections and deaths in the country reached new peaks over the past few days. The Silao production facility, which makes highly profitable pickup trucks for GM, is one of the biggest automotive plants in Guanajuato, a major Mexican carmaking state. Related Video: