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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.

Ford tops GM in US vehicle sales in May, driven by fleets

DETROIT - Ford, bolstered by heavy sales to fleet customers, surpassed General Motors in US new vehicle sales in May, according to figures reported Thursday. Ford said May sales rose 2.2 percent from a year ago to 241,126 units. GM sales dropped 1.3 percent to 237,364. GM said it had been trimming sales of heavily discounted vehicles to car rental companies. Such fleet sales made up about 19 percent of its total sales in May. Ford's fleet sales rose 8.4 percent, representing more than 34 percent of total sales. The industry average is around 20 percent. Analysts had expected mixed results for the industry, with sales likely propped up by heavy discounts. Fiat Chrysler Automobiles said May sales dipped 0.9 percent to 193,040. Toyota's US sales dropped 0.5 percent to 218,248. Nissan said US sales in May rose 3.0 percent, to 137,471. After demand fell in March and April, analysts estimated May sales at just over 1.5 million. The seasonally adjusted annual rate of sales in May was estimated at 16.8 million to 16.9 million vehicles, about the same as April. A year earlier, sales stood at 17.55 million vehicles. Early reports indicated that sales over the three-day Memorial Day weekend were helped by heavy discounts. "While demand for new vehicles is still relatively strong, it's a bit of smoke and mirrors," said Jessica Caldwell, executive director of industry analysis at Edmunds, the car shopping website. Manufacturers and dealers "really pushed the deals over the holiday weekend to prop up their May numbers," she said. "Incentives were up sharply, and it seems automakers are putting more cash on the hood to nudge car shoppers to buy versus lease." General Motors dealers were offering discounts of up to $12,000 on the full-size Chevrolet Silverado pickup, while some dealer discounts on Ford Motor Co's F-series pickups were more than $10,000 on 2017 models and more than $14,000 on leftover 2016 models. The 2017 model year started eight months ago. Reporting by Paul LienertRelated Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Earnings/Financials Chrysler Fiat Ford GM Nissan Toyota US

Renault will split EV from combustion unit, seeks partnerships

PARIS — Renault has received several partnership proposals for the combustion engine unit it plans to create alongside one dedicated to electric vehicles and software, two sources familiar with the matter said. Renault plans to separate its electric and conventional car businesses, creating two entities to manage the shift towards fossil-free vehicles. "The group has already received partnership demands" for its internal combustion engine unit, one of the sources said. By bringing in partners on the combustion engine side Renault aims to free up funds to invest in electric vehicles, a technology in which it was a pioneer with Nissan and Mitsubishi, but in which it is now eclipsed by pure players such as Tesla. Renault intends to retain majority ownership of its electric division, which will employ about 10,000 people and which could be bourse-listed via an IPO in the second half of 2023. However, it will only remain a reference shareholder, not a controlling shareholder, of the combustion engine unit, which will have similar staff levels, said two other sources familiar with the plans. One of the sources said Renault may hang on to a 40% stake. Renault declined to comment. The carmaker at a capital market day this autumn will set out its plans for its electric arm based in France and the combustion unit headquartered abroad. That entity will include factories producing engines and gear boxes for gasoline and hybrid cars in Spain, Portugal, Turkey, Romania and Latin America. Among potential partners for its combustion engine business, CEO Luca de Meo in April mentioned Nissan, other automotive groups and long-term investors. De Meo is set to travel to Japan next month to discuss potential Japanese participation in its electric and combustion engine projects. Renault is undergoing a major restructuring aimed at restoring its finances and recently signed partnerships beyond its historical alliances with Nissan, Mitsubishi and Mercedes, such as with China's Geely Automobile Holdings. This month it sold 34% of its South Korean unit to Geely, which owns Volvo Cars and is a shareholder in Mercedes. With Geely, Renault plans to develop hybrid vehicles which will be assembled in its plant in Busan, South Korea. Earnings/Financials Green Mitsubishi Nissan Renault