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    A silicon chip shortage is causing automakers to idle their factories

    news.movim.eu / ArsTechnica · Thursday, 4 February, 2021 - 16:37 · 1 minute

A silicon chip shortage is causing automakers to idle their factories

Enlarge (credit: Aurich Lawson / Getty Images)

You may have noticed that it's difficult to get a hold of new high-end graphics cards and game consoles these days. In large part, that's due to an ongoing global shortage affecting semiconductor foundries. As it turns out, the problem is even more pronounced in the auto industry. In fact, it's getting so bad that a number of OEMs, including Ford and General Motors, have had to go as far as idling shifts and even entire factories.

Ford had to stop production in Kentucky in December of 2020, and in January, it ordered a month-long pause at a German factory. Stellantis (the new company formed by a merger between Fiat Chrysler and Peugeot) reduced output at factories in the US, Mexico, and Canada around the same time. As did Audi, which had to idle 10,000 employees in Germany, CEO Markus Duesmann telling the Financial Times that the problem involved "a very long chain with different supply levels on the components that we are short." Subaru's Gunma factory in Japan has been affected. Production of Toyota's Texas-produced Tundra has, too.

This week, more hits keep coming. Mazda just announced it might have to cut output by 34,000 units this year due to a lack of chips. Nissan's truck factory in Mississippi has reduced its hours . And on Wednesday, GM said it will halt production at factories in Kansas, Canada, Mexico, and South Korea. In many cases, the automakers are trying to prioritize their more in-demand products, but as some of those closures show, that isn't always possible.

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    Le SUV électrique Volkswagen ID.4 peut-il rivaliser avec le Tesla Model Y ?

    news.movim.eu / Numerama · Thursday, 24 September, 2020 - 08:13

Volkswagen a présenté le ID.4, un SUV compact 100 % électrique intégré à sa nouvelle gamme lancée avec la ID.3. L'autonomie maximale grimpera à 520 kilomètres. [Lire la suite]

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L'article Le SUV électrique Volkswagen ID.4 peut-il rivaliser avec le Tesla Model Y ? est apparu en premier sur Numerama .

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    Teardrops and wind tunnels: A look at the world’s most aerodynamic cars

    news.movim.eu / ArsTechnica · Friday, 8 May, 2020 - 18:02 · 1 minute

With no car launches to work on thanks to COVID-19, some automakers' press offices are filling the gap by digging into the archives to share interesting stuff with the rest of us. On Thursday, Volkswagen North America reached out to tell us about the company's most aerodynamic car ever. It was called the Aerodynamic Research Volkswagen, and it was built in 1980 as a demonstration of how to make a vehicle as slippery as possible, with a drag coefficient (Cd) of just 0.15. Powered by a 177hp (132kW) 2.4L inline-six cylinder engine, the ARVW reached a speed of 225mph (362km/h) at the Nardo test track in southern Italy. But the ARVW isn't the lowest-drag vehicle ever built, just the lowest-drag VW. So what is the most aerodynamic car of all time?

Production cars

When Tesla revealed its Model 3 sedan a few years ago, it was justifiably proud of the car's Cd of 0.23, which bettered the Models S and X by 0.01. Tesla didn't optimize the Model 3's aerodynamics just for bragging rights. The lower a car's drag, the further it can go per unit of energy because it doesn't have to work as hard to push its way through the air. However, a Model 3 is only this slippery through the air when the car's 18-inch wheels are fitted with the aero wheel covers, something Car and Driver put to the test late last year . (If you're a Model 3 owner and into hypermiling, you can cut your car's drag—and thereby boost its range—even further by fitting aftermarket front- and rear spoilers .)

But the Model 3 isn't the lowest-drag car to have gone into production. Porsche's Taycan battery EV bested Tesla's best when it went on sale last year. Both the Taycan Turbo and Taycan 4S manage a Cd of 0.22, although again, only with the most aerodynamic wheels fitted. The Taycan Turbo S uses a different design and in the wind tunnel, that adds 0.03 to the Cd.

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Apple, Volkswagen, Nike associés au travail forcé de la minorité ouïghour en Chine