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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 GT-R LM Nismo pulls its way to Chi-town

We generally take it as a given that, as far as performance goes, rear-wheel drive is better than front. All-wheel drive can be better than either, in some cases, but you need power going to the wheels that aren't also handling the steering while leaving the others just tagging along for the ride. Right? Well Nissan is here to upend that notion with the new GT-R LM Nismo, presented here at the 2015 Chicago Auto Show. After supporting the DeltaWing project a couple of years ago and fielding its own ZEOD RC prototype last year, Nissan is returning to Le Mans this year with another oddball endurance racer. Only this time, it's going for gold, competing against the likes of Porsche, Audi and Toyota for the overall win in the top-tier LMP1 class. Tying this front-drive, 1,250-horsepower hybrid racing prototype to the all-wheel-drive GT-R may be tenuous, but we have to hand it to Nissan for shaking things up. In the process, Nissan has also confirmed the hot shoes who'll be tasked with manhandling this beast around the Circuit de la Sarthe (and the rest of the tracks on the 2015 FIA WEC calendar). Joining former Le Mans winner and longtime Ferrari test driver Marc Gene will be Super GT champion Tsuigio Matsuda as well as Harry Tincknell and Olivier Pla (both experienced from the largely Nissan-powered LMP2 field), Nissan factory driver Michael Krumm and GT Academy graduates Lucas Ordonez and Jann Mardenborough, both of whom have made their way into professional racing on the merit of their video gaming abilities. We'll be looking forward to watching them try to get the best out of this most innovative Datsun.

Recharge Wrap-up: Nissan Murano Hybrid in China, FCA hearts E15

Fiat Chrysler Automobiles (FCA) has approved the use of E15 in its 2016 model year vehicles. The Renewable Fuels Association is pleased with the automaker's choice to cover the higher ethanol blend in its warranty statements, describing it as a positive signal for the future growth of E15. "FCA's decision to join GM and Ford provides clear evidence that the tide on E15 has turned," says RFA President and CEO Bob Dinneen. "The automaker's decision not to embrace E15 had been a major point of concern and tension for the last three years." Read more from the RFA. Skoda's head of purchasing, Dieter Seemann, discusses sourcing EV components in a new interview. He says the biggest challenge is seeking out future suppliers for electric motor and connected vehicle components. "We have to really understand what happens in this business to identify the right partners to have in five to eight years from now," says Seemann. "Many of these are suppliers completely new to us." He says Skoda purchases 50 to 55 percent of its parts directly, while chassis and powertrain parts are shared among other Volkswagen Group brands. Read the full interview at Automotive News Europe. Nissan is helping the European Commission develop a pedestrian alert system for electric vehicles. Called Electric Vehicle Alert for Detection and Emergency Response (eVADER), the project aims to develop technology that provides audible cues to alert pedestrians to oncoming vehicles without contributing to noise pollution. Nissan created a system for the Leaf that uses a camera to recognize pedestrians and cyclists and direct a sound in their direction. This work will help the EU shape its laws moving forward. Read more at Electric Cars Report. The Nissan Murano Hybrid has gone on sale in China. The Murano Hybrid is powered by a supercharged 2.5-liter engine and an electric motor with lithium-ion battery. The hybrid uses Nissan's All Mode 4x4-i all-wheel-drive system, and is equipped with a host of safety technology. The new Murano helps Nissan cater to China's growing demand for SUVs, and is also part of the "Young Nissan" strategy. Read more at Green Car Congress, or in the press release below. Nissan introduces the all-new Murano to China SHANGHAI, China(August 8, 2015) – Nissan today announced that the all-new Murano, including the hybrid version, is officially available for sale from its joint venture in China, Dongfeng Nissan Passenger vehicle company (DFL-PV).