2002 Nissan Altima S Sedan 4-door 2.5l on 2040-cars

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Ghosn shares 'truth about Autonomous Drive cars'

Drive our cars. No, wait, don't drive our cars. Nissan chief Carlos Ghosn is delivering a message about autonomous driving that's less mixed than it sounds on the surface. As part of his public dialogue from LinkedIn's "Influencer" series, Ghosn said in a company announcement that "hands-free" driving is part of the Japanese automaker's "near-term technology." In fact, cars that can self-drive in heavy, stop-and-go traffic, may be ready for the market by late 2016. That should please texters everywhere. 2018 may be the year cars with lane-changing, hazard-avoiding capabilities will see the light of day, while by 2020, Nissan may feature a "complete package" of autonomous-driving features, Ghosn writes. As for the proverbial driver-less car? That's at least a decade out but ultimately likely, according to Ghosn. Nissan said early last year that some autonomous versions of its vehicles may be available in the US by the end of the decade, and that it was in talks with California regulators about the idea of self-driving cars on the state's roads. Nissan has worked with institutions such as MIT, Stanford and Oxford at developing autonomous-drive concepts, and has tested self-driving versions of the Leaf electric vehicles in Japan. Check out excerpts of the Ghosn "interview" below. The truth about Autonomous Drive cars, by Carlos Ghosn The following is the latest from Carlos Ghosn's LinkedIn Influencer series. Read all of Mr. Ghosn's LinkedIn Influencer articles here. There has been a lot of talk in the media recently about "Autonomous Drive" technology and a potential future of driverless cars. No doubt, Autonomous Drive technology will change how we approach driving. I expect it to result a significant transformation in transportation. But all the talk has left many drivers a bit confused. After years of promoting "eyes on the road, hands on the wheel," the auto industry is now talking about reading your email or a book while you drive – and the prospect of maybe not even needing a driver. So it's a good time to address the questions that arise whenever this subject comes up: Q: What is Autonomous Drive? A: Autonomous Drive combines the technology of robotics, artificial intelligence, sensors and car-to-car connectivity. It is a range of technologies that will be added to our cars over the next several years.

Behold your 2015 Nissan Versa Sedan, America

If you've been hoping that the 2015 Nissan Versa Sedan would adopt something of the Versa Note hatchback's styling aesthetic, consider your hopes dashed. This is the facelifted four-door Versa, which is set to make its official debut next week at the New York Auto Show.
You can make your own minds up on the exterior rework, which is a fairly gentle evolution of the current model. The headlights and a new, familial grille are the two big changes for the front of the Versa that give it a bit of Altima style. Out back, the headlights are slightly tweaked, while a sportier rear bumper is the most noticeable change. The top-end Versa SL also adds new mirrors, complete with Audi-ish integrated turn signals, while the Versa SV adds new 15-inch alloys.
Tweaks for the Versa's huge interior are kept to a minimum, and constitute a new steering wheel and a tweak to the center stack, along with some improved materials. Like the Versa Note, Nissan has fitted the NissanConnect infotainment system, although it's only available on the Versa SL.

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.