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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 won't downsize the next Armada

The Nissan Armada is aptly named, because in relative automotive terms, it's not just the size of a ship - it's the size of a whole fleet. And that, according to reports, isn't about to change.
While many of the larger SUVs on the market are gradually being phased out or replaced by smaller crossovers, Nissan apparently plans on keeping the Armada right where it is. And that means a large, truck-based, eight-passenger colossus, because there are buyers out there who expect no less and Nissan isn't about to lose them to the likes of the Toyota Sequoia, Ford Expedition and Lincoln Navigator, or a General Motors lineup that includes the Chevy Suburban and Tahoe, GMC Yukon and Cadillac Escalade.
That doesn't mean that the next Armada - which Edmunds expects will arrive in 2015 or 2016 - will be immune to constricting environmental regulations, so Nissan will have to get creative. A vehicle the size of the Armada has all the aerodynamic efficiency of the side of a barn, but Nissan is reportedly aiming to streamline that in order to boost efficiency, for starters.

Police search Renault headquarters as part of Ghosn probe

PARIS — Police are searching Renault's corporate headquarters in Boulogne-Billancourt, which a judicial source said was related to an ongoing investigation into ex-Renault boss Carlos Ghosn and his use of Versailles for his 2016 wedding party. L'Express magazine reported earlier on Wednesday that the search was being carried out in relation to Ghosn, who faces charges of misconduct. Ghosn has denied any wrongdoing and has been released on bail. L'Express added that French authorities were probing a wedding reception party held at the Chateau de Versailles in 2016 to mark the wedding of Ghosn to his second wife Carole, and a judicial source confirmed those elements to Reuters. Renault itself confirmed that police were searching its premises, but declined to comment on the subject of the search. "Renault confirms that a search by police is currently underway at its headquarters in Boulogne-Billancourt and Renault is co-operating fully with authorities," said the company, adding that it would not make any further comment on the matter. Earlier this year, Renault said it had found evidence that it had paid part of Ghosn's wedding costs and added it would turn the investigation over to prosecutors. Ghosn's Versailles wedding party in October 2016 had already drawn public scrutiny for its opulence and Marie Antoinette-themed costumes. Government/Legal Mitsubishi Nissan Renault Carlos Ghosn