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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.

AAA ranks Tesla Model S P85D best green car of 2015, Versa is best value

Reviewers from all parts of the automotive world just seem to love the Tesla Model S, whether it's the pragmatists at Consumer Reports or the enthusiasts at Car and Driver. You can add one more to that list because the 2015 P85D grabs the top spot in AAA's fifth annual Green Car Guide, after Tesla's win last year too. The organization's ranking of 88 green models also names the 2014 Nissan Versa SV as the best value in the segment. To take the victory, the P85D had to score the most points over 13 categories, including emissions, acceleration and cargo capacity, and it won handily with 94.87 points. There was nearly a tie for second place, though. The 2015 Volkswagen e-Golf SEL Premium scored 85.5 points, and the 2014 BMW i3 narrowly came in third with 85.4. The best value award is based on the as-tested price per point scored. So while the Versa SV only had 64.5 points overall, its low price meant that each one cost just $249. Second place went to the Versa Note SV with 64.63 points at $260 each, and third was the Hyundai Accent GLS with 61.1 points for $269 each. Keep in mind, AAA's ranking doesn't attempt to find the most environmentally friendly vehicle, rather it tests the green car segment to give recommendations to buyers. Battery electric powertrains, compressed natural gas, clean diesel, hybrids, partial zero-emissions vehicles, and simply models with high fuel economy are all counted by the organization. The results are published in a 160-page magazine, which you can read here. It also offers suggestions on economical driving and explains some of the fuel-saving tech currently available. Related Video: Top Green Vehicle is a 2015 Tesla, According to Fifth Annual AAA Green Car Guide ORLANDO, Fla., April 20, 2015 The 2015 Tesla Model S P85D earned the top score in the 2015 AAA Green Car Guide, the motor club announced today. The Palo Alto-based automaker's car is featured with more than 80 other green vehicles in the 2015 AAA Green Car Guide. The best green car value award went to the 2014 Nissan Versa SV. To help those in the market for a green car or truck, the 160-page, comprehensive fifth annual AAA guide reviews 88 battery electric vehicles, compressed natural gas-powered (CNG) vehicles, clean diesels, hybrids, partial zero emission vehicles (PZEVs), and vehicles with high fuel economy.

Infiniti moves to trademark Eau Rouge

With Formula One taking to Belgium and the famous Spa-Francorchamps circuit this weekend - boasting a reputation as one of the most beautiful courses on the calendar - all eyes will likely be on the tricky Eau Rouge corner, which challenges drivers' high-speed car control over a rolling, tree-lined hill. Infiniti played on the turn's iconic legacy for its ruby red Q50 Eau Rouge concept, and now the brand hopes to trademark the famous racing name so it can keep using it for a potential production version.
In January, the company filed for a trademark on Eau Rouge for "Automobiles and their structural parts; Fuel cell automobiles and their structural parts; Concept cars" with the US Patent and Trademark Office. According to Bloomberg, the application is still under consideration and not yet a guarantee. It's possible that the track could attempt to block the automaker from earning rights to the name. Alternatively, a trademark lawyer tells Bloomberg that the two of them could also strike a deal where Infiniti would pay a small amount for each car sold bearing the title, which could give Spa a bit of extra money in the bank.
Regardless of the name, a vehicle like the Eau Rouge is something enthusiasts have been wanting for years. It combines a modified, 560-horsepower version of the engine from the Nissan GT-R into a four-door sedan covered in aggressive, carbon fiber aerodynamic parts.