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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.

Renault and Nissan in talks that could reshape autos alliance

PARIS/TOKYO – Renault and Nissan said on Monday they were in talks about the future of their alliance, including the Japanese automaker considering investing in a new electric vehicle venture by its French partner. The talks, which could prompt the biggest reset in the alliance since the 2018 arrest of longtime executive Carlos Ghosn, have included consideration of Renault selling some of its Nissan stake, two people with knowledge of them said. Negotiations are expected to continue ahead of a Renault investor presentation in early November, when the French carmaker is expected to give an update on its new EV unit, which is code-named "Ampere." Renault owns about 43% of Nissan, which in turn has a 15% stake in its long-term partner. The French state also has a 15% holding in Renault. Shares in Renault rose by as much as 6% in early trading, making the stock the best performer on France's benchmark CAC-40 equity index. They were up 3.54% by 1105 GMT. Renault and Nissan said in a joint statement that they were "engaged in trustful discussions around several initiatives" including a potential Nissan investment in the EV venture and what they called "structural improvements" in their alliance. Renault CEO Luca De Meo, who was in Japan over the weekend, and Nissan CEO Makoto Uchida have been central to talks about reshaping its terms, a person familiar with the talks said. A group of Nissan executives, including Chief Operating Officer Ashwani Gupta, have also been involved in developing discussions in recent months, the person said. Renault is looking to win Nissan as an investor in its new EV venture, which it is setting up alongside a separate combustion engine unit, essentially splitting out the higher-growth and investment-hungry portion of its auto business. In exchange for investing in the EV venture, Nissan is looking to Renault to reduce its stake in the Japanese automaker, a person familiar with the talks said. The French dominance of the alliance has long been a point of contention for Nissan, which wants Renault to cut its stake to 15% to draw level with its own holding in Renault, the source familiar with the matter told Reuters. For Nissan, the talks could represent a chance to reset a structure that many executives at the Japanese firm have seen as unbalanced, given the way vehicle development work between the two carmakers has progressed in recent years.

Nissan Leaf sells 3,186 in best month ever as Chevy moves 2,511 Volts

The end of summer seems to inspire people to go out and buy a lot of plug-in vehicles. Last year, for example, the Chevy Volt had its best month ever in August, with 3,351 sales. This year, the Nissan Leaf is going up to the winner's podium, setting its own best-ever record with 3,186 units sold. This beats the Leaf's previous record by 69 vehicles. This beats the Leaf's previous record of 3,117 set in May 2014 by 69 vehicles and is up 31.7 percent from August 2013. Nissan is once again quick to remind us that the popular EV's record sales streak has now been extended to 18 months in a row. This record is simply noting that the current month, in this case August, had the highest sales that that month has ever seen in the US. Over all, US Leaf sales are up 34.1 percent so far this year. In a prepared statement, Nissan's director of Leaf sales and infrastructure, Brendan Jones, said that the Leaf is selling well on both coasts, including cities like Raleigh, Boston and Washington, DC. "It's what we call the 'cul-de-sac phenomenon,' where once someone in a community buys a Leaf, then friends, family, co-workers and neighbors see the benefits of this fun-to-drive electric vehicle firsthand and are sold on the idea of going electric," he said. The Volt also had a good month - its best of 2014 by almost 500 sales – but the 2,511 Volt sales still represent a drop of 25.1 percent from the excellent sales the Volt had this time last year. In fact, August 2014 represents the Volt's best sales month since, well, August 2013. Apparently, there's just something about the end of summer. As always, we are working on our in-depth round-up of green car sales across the country and will have that up soon.