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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.

Mercedes considering Mexico for CLA production

Would you buy a Mercedes-Benz if it were made in Mexico? That's what the German outfit is wondering, as it considers localizing production of the its new budget model at a factory operated by Nissan, of which the automaker is a joint-venture partner.
According to a report from Automotive News, moving production of American-spec CLAs from Hungary to Mexico would protect Mercedes from currency fluctuations. "Mexico is the best location for the United States," Daimler Chairman Dieter Zetsche told AN. The CLA is also expected to become the brand's volume model in the US market, which makes North American production a logical move.
In the event that Mercedes approves the plan, Nissan would expand the capabilities at its Aguascalientes, Mexico plant, allowing production to begin in 2018.

Nissan unveils ZEOD RC at Nismo HQ in Japan [w/videos]

At Le Mans this past summer, Nissan unveiled the first prototype for the ZEOD RC, a new hybrid racecar which it intends to field at the famous French endurance race next year. Four months have passed since then, totaling eight month of development, and now Nissan has revealed the final form at the headquarters of its Nismo racing division.
The updated Nissan ZEOD RC benefits from a more streamlined shape with optimized cooling and improved aerodynamics. Although billed as an electric vehicle and not a hybrid, the ZEOD RC pairs a 1.6-liter turbo four with a pair of electric motors. Its regenerative braking system is derived from the Leaf RC, and after 11 laps, it's said to be capable of taking another around the Circuit de la Sarthe under electric power alone, making it the first racecar capable of doing so. Nissan has further stated that it hopes the lessons it garners from this project will help in its development of a new LMP1 to challenge for overall victory at Le Mans in the near future.
The ZEOD RC will be on display at Fuji Speedway this weekend during the six-hour FIA World Endurance Championship race there, after which it will continue its development at the hands of former GT1 champion Michael Krumm and gamer-turned-racer Lucas Ordonez, who will be getting it ready for (and possibly drive it at) next year's 24 Hours of Le Mans. There it will compete - faster than most GTE sportscars, says Nissan - in the Garage 56 spot that once was awarded to the DeltaWing, which Nissan sponsored and to which the ZEOD RC looks conspicuously similar.