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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 tests 'self-cleaning' paint on Leaf models in Europe

Once upon a time, self-cleaning ovens were all the rage. Now, Nissan thinks the concept may apply to its vehicles. And the Japanese vehicle maker is testing it out on some of its Leaf battery-electric vehicles Europe, no less. Nissan says its trying out what's called a "superhydrophobic and oleophobic" paint on Leaf battery-electric vehicles for testing and demonstration purposes. The paint, produced by UltraTech International Inc., is designed to repel splats of liquid such as oil or standing water away from the car's surface. The paint, called Ultra-Ever Dry, does this by creating what Nissan says is a layer of air around the vehicle surface. We imagine there's a detailed chemical explanation for this phenomenon that would better explain this process, but that's the best way we can explain it. Right now, Nissan is pitching the product testing as a way to further the Leaf's reputation as what the automaker calls "the world's cleanest car." That said, the paint hasn't been tested in North America, and no plans have been made to add the feature as either a standard or optional goodie for the battery-electric vehicle. Still, go ahead and check out Nissan's press release on the magic paint below. Nissan Creates "World's Cleanest Car" – a Zero Emissions Nissan LEAF with Self-Cleaning Nano-Paint Technology For LEAF owners who never qualify for gas stations' "Free Car Wash with Purchase" offers, this technical study might be the perfect solution July 09, 2014 10:00 AM Eastern Daylight Time NASHVILLE, Tenn.--(BUSINESS WIRE)--What do you get when you combine the world's best-selling zero emission vehicle with innovative paint technology that repels mud, rain and everyday dirt? Answer: A very special Nissan LEAF electric vehicle that might just be the "world's cleanest car." "No matter what the road throws at this LEAF, its Ultra-Ever Dry® exterior coating will throw right back" Created to demonstrate its potential use in future production vehicles, this Nissan LEAF's exterior was treated with a specially engineered superhydrophobic and oleophobic paint that is designed to repel water and oils. The "self-cleaning" paint, called Ultra-Ever Dry®, creates a protective layer of air between the paint and environment, effectively stopping standing water and road spray from creating dirty marks on the LEAF's surface. Nissan is one of the first carmakers to apply this technology to a vehicle.

Lebanon imposes travel ban on ex-Nissan boss Carlos Ghosn

BEIRUT — A Lebanese prosecutor imposed a travel ban on former Nissan boss Carlos Ghosn on Thursday, judicial sources said, after he was questioned over an Interpol warrant issued by Japan seeking his arrest on financial misconduct charges. Ghosn fled Japan to Lebanon, his childhood home, last month as he was awaiting trial on charges of under-reporting earnings, breach of trust and misappropriation of company funds, all of which he denies. The Lebanese judicial authorities also asked Japan for its file on Ghosn, including the charges against him, and will not question him again until the information is received, one of the sources said. Carlos Abou Jaoude, a Beirut-based lawyer for Ghosn, told Lebanese broadcaster MTV Ghosn was "very comfortable" with the proceedings in Beirut. "He is very comfortable with the path," Jaoude said, adding that Ghosn was also comfortable himself "especially after what he went through". The decision issued by the prosecutor, Judge Ghassan Ouiedat, requires Ghosn to keep the authorities informed of his place of residence, the judicial sources said. Ghosn would surrender his French passport to the Lebanese authorities later on Thursday, one of the sources said after the questioning, which took place at Beirut's Justice Palace, the headquarters of the judiciary. The Brazilian-born Ghosn said on Wednesday he had escaped to Lebanon to clear his name and was ready to stand trial anywhere he could get a fair hearing. Ghosn said he was ready to stay for a long time in Lebanon, which does not allow the extradition of its nationals, and a source close to the 65-year-old has said his legal team is pushing for him to be tried in the country. In addition to the Interpol warrant, Ghosn was also questioned over a formal legal complaint filed against him by a group of Lebanese lawyers who accuse him of "normalization" with Israel over a visit he made there in 2008. The prosecutor released him with the same condition, that he keep the authorities aware of his place of residence, the sources said. There was no immediate statement from the prosecutor's office. In his comments to MTV, Ghosn's lawyer Jaoude said a statement would be issued by Ghosn's team later. Ghosn said on Wednesday he had made the trip as a French citizen and an executive of Renault to sign a contract with a state-backed Israeli firm to sell electric vehicles, and had been obliged to go because the board had requested it.