2009 Nissan Murano Sl Awd Leather, Sunroof 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.

Renault-Nissan alliance to start autonomous EV testing

The Renault-Nissan alliance is joining the self-driving electric-vehicle party. The French-Japanese automaking collaboration, which has been selling electric vehicles to the masses since introducing the Nissan Leaf in 2010, said Monday that it will work with transportation-technology consultant Transdev on developing a fleet of self-driving EVs for testing purposes. The model of choice, though, won't be the Leaf, but instead will be the Renault Zoe. Details aren't abundant, but the group does say it will perform the field testing in the Paris area. Transdev's pedigree includes operating what it says is the world's first commercial driverless service at France's EDF campus. The company, which is majority-owned by Caisse des Depots, is no small potatoes, generating about $7 billion in revenue in 2015. Take a look at the alliance's statement here. The alliance has already been working with Microsoft on driving-technology advancements and has teamed up with Japan-based DeNA to hatch a driverless-vehicle initiative for commercial services. And in January, Nissan said its ProPilot features, which include increased self-driving capabilities, would be added to its Leaf EV "in the near future." Of course, other automakers have already jumped into the self-driving EV game. California-based EV maker Tesla has long been pushing its vehicle technology toward autonomy, and General Motors said in December that it would start field testing driverless Chevrolet Bolt EVs sometime this year. In the meantime, the Alliance is gearing up a changeover in leadership, as Carlos Ghosn said last week that he was stepping down as Nissan's CEO on April 1. Ghosn, long a champion of electric-vehicle technology, will be succeeded by Nissan co-CEO Hiroto Saikawa. Related Video: Featured Gallery Renault Zoe ZE 40 Yttrium Grey View 27 Photos News Source: Renault-Nissan Alliance Green Nissan Renault Autonomous Vehicles Electric alliance zoe

Infiniti readies Juke-based ESQ crossover specifically for China

When most luxury automakers started getting into SUVs and crossovers, they started at with the largest models, but have gradually been getting smaller. Think Lexus and the LX, Audi and the Q7, or BMW and the X5, and you'll see what we mean, because each of them has been steadily downsizing its crossovers ever since. But Infiniti is going even smaller. At least, in China, anyway.
That's where the luxury marque from Nissan will soon be offering the new Infiniti ESQ. The smallest of Infiniti crossovers has been developed in China, exclusively for the Chinese market to meet Chinese tastes. It shares its underpinnings with the Nissan Juke, but instead of starting with the base model, Infiniti China has started with the more potent Juke Nismo - complete with 1.6-liter turbo four producing 197 horsepower - and added on premium accoutrements. The exterior that appears to be differentiated by a new grille and wheels, featuring the ESQ logo instead of Infiniti's, but the same quirky styling that sets the Juke apart. Though all we can of the interior is the steering wheel, you can bet that Infiniti gave the ESQ a more luxurious cabin space, too.
Infiniti's global communications manager Stefan Wienmann told Autoblog that the company is "expanding [its] portfolio not only globally but also specifically in China," adding the ESQ to a market-specific lineup that includes long-wheelbase versions of the Q50 sedan and QX50 crossover. "We see specific sales opportunities in this segment," explains Wienmann, adding that a targeted project like the ESQ "also enables us to gain experience in positioning a new premium model to the 'new millennials', a customer group that is very important to us."