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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.

Nissan Leaf ends 2013 with best sales month ever, but can't catch Chevy Volt

Nissan and Chevrolet both ended 2013 with solid sales figures for their plug-in vehicles, the first two that were released (all the way back at the end of 2010) from major automakers. As has been the story for most of 2013, December sales for the Nissan Leaf and the Chevy Volt were roughly the same. When we left the year-to-date running tally at the end of November, the Volt was at 20,702, while the Leaf was at 20,080. As you can tell from the image above (if you've been noticing the trend in these EV sales monthly flash-reports), the Leaf outsold the Volt, but was it enough to put the Nissan on top for the year? In 2013, Nissan sold 22,610 Leafs, more than twice as many as in 2012. Almost. The Leaf made a valiant attempt, and did have its best month ever with 2,529 units sold. That means that for 2013, Nissan moved a total of 22,610 Leafs, more than twice as many as in 2012 (that year, Nissan sold only 9,819 Leafs in the US) and actually more than 2012 and 2011 Leaf sales combined (which was 19,493). Nissan continues to see the effects of its price drop and expanded sales areas, with Georgia rapidly becoming a Leaf hotbed. Nissan's Paige Presley said that Atlanta was once again the Leaf's number one market and that, "sales are expanding deeper into Georgia markets such as Macon and Columbus." The Volt saw a boost upwards from a November slump and sold 2,392 units in December. That puts the plug-in hybrid's annual total at 23,094, just down from the 23,461 sold in 2012. For all of 2013, though, the Volt outsold the Leaf by 484 vehicles. In a competition like this, we'll count that as a win for both sides. We will our more detailed monthly green car sales report, which covers more of the fuel efficient vehicles on the market, up soon. News Source: GM, Nissan Green Chevrolet Nissan Electric Hybrid PHEV ev sales hybrid sales

Recharge Wrap-up: BMW, Nissan team up on chargers, CNN loves Tesla Model X

CNN Money calls the Tesla Model X "the new king of crossover SUVs." In its round-up of its favorite luxury SUVs of 2015, CNN places the electric ute on the top of its list. The Model X's EV powertrain, excellent acceleration and handling and cool design and technology features (including much attention paid to its slick Falcon Wing doors) earn it high praise. See the video above, and read more at CNN Money or from Clean Technica. Tesla has plans to open offices in Korea and South Africa. Tesla has registered in Korea as Tesla Korea Limited under co-CEOs Todd Maron (Tesla general council) and Susan Repo (Tesla Financial Services). It will have an office near Seoul. Tesla is also reportedly opening an office in South Africa in January, with GreenCape CEO Evan Rice acting as Business Development Manager. Rice will work to build a market for Tesla's PowerPack stationary energy storage systems. Read more from Korea Times, from htxt and from Teslarati. BMW and Nissan are partnering to build 120 new fast charging stations in the US. The public, 50-kW DC chargers, operating on the Greenlots charging network, will be deployed in 19 states in order to support Nissan Leaf and BMW i3 drivers, and to help promote EV adoption in the US. The chargers will support both CHAdeMO and SAE Combo charging. "Together with Nissan, we are focused on facilitating longer distance travel so that even more drivers will choose to experience the convenience of e-mobility for themselves," says BMW's Manager of Connected eMobility, Cliff Fietzek. Kia also recently partnered with Greenlots to provide charging for Soul EV drivers. Read more in the press release below. BMW AND NISSAN PARTNER TO DEPLOY DUAL FAST CHARGERS ACROSS THE U.S. TO BENEFIT ELECTRIC VEHICLE DRIVERS • A total of 120 dual-port 50kW DC Fast-charging stations have been installed across 19 states to support longer distance electric vehicle travel for Nissan LEAF and BMW i3 drivers. • These publicly available Greenlots-networked charging stations include both CHAdeMO and CCS (Combo) connectors, suitable for all DC Fast charging-capable electric vehicles in the U.S. WOODCLIFF LAKE, NJ and NASHVILLE, TN - December 21, 2015... BMW and Nissan are joining forces to offer public DC Fast charging at 120 locations across 19 states in an effort to support Nissan LEAF and BMW i3 customers and to promote increased adoption of electric vehicles (EVs) nationwide.