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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.

Outrageous Thor24 semi truck to appear in the new season of 'Jay Leno's Garage'

Wednesday is Jay Leno's birthday, and CNBC used the occasion to announce the upcoming season of Jay Leno's Garage. In a new teaser video, Leno is seen with a stacked list of guests, some new, some repeats, as well as a wild gamut of vehicles, including the absolutely insane 24-cylinder, 3,424-horsepower Thor24.  The outrageous semi build, which sold at auction in Saudi Arabia earlier this year for a whopping $12 million (or $1 million per supercharger) will join the likes of the Tesla Cybertruck and a recliner on wheels on the upcoming season of Jay's series.  Thor24 View 24 Photos The formula for Jay Leno's Garage is simple, successful, and not changing anytime soon. He brings out a bunch of famous people, some of which are real enthusiasts, others who have more casual driving backgrounds, and they experience a vehicle together. In the short clip released by CNBC, Leno is accompanied by Elon Musk (again), Danny Trejo, Bill Burr, Tim Allen, Jon Hamm, Brad Garrett, Jeff Dunham, Kelly Clarkson, Matt LeBlanc, Blake Shelton, Norm MacDonald, Edd China, and Jon Lovitz.           View this post on Instagram                   Thank you for sharing your dream with us. Happy Birthday, Jay! Love always, your @cnbcprime Family. A post shared by Jay Leno's Garage (@jaylenosgarage) on Apr 28, 2020 at 8:27am PDT The people, however, are merely social lubricants to spotlight the real stars of the show, the cars. This season will include the Tesla Cybertruck, the record-breaking Bugatti Chiron Super Sport 300+, a 1965 Buick Riviera, a naked cat car, an Aston Martin DBS Superleggera, a Porsche Taycan, a modern Ford GT, a Chevrolet Corvette C8 hard-top convertible, amphicars, a snail car, a beetle car, a couch car, and the 24-cylinder, 12-supercharger, 3,424-horsepower Thor24 semi. Just to name a few. As usual, there will be racing, stunts, spinouts, smoke from both tires and engines, and lots of silly dad jokes. Season 5 of Jay Leno's Garage debuts on CNBC on May 20 at 10 p.m. ET. Related Video: Celebrities Green TV/Movies Aston Martin Bugatti Chevrolet Tesla Special and Limited Editions Jay Leno Jay Lenos Garage

Chevy dials up the razzle dazzle for Special Ops concept

Inspired by naval camouflage schemes used during the First World War, Chevy created the 2016 Silverado Special Ops concept, which is on display this week at the SEMA Show in Las Vegas. Based on the 1500 Z71, this Silverado wears a three-tone paint job that mixes different shades of blue, which Chevy says gives the concept visual depth. The appearance is a riff on early 20th Century color configurations used by the US and British navies. Called razzle dazzle, the look is meant to disguise ships' size, speed, and direction. On the Silverado, it simply adds character and gives the truck a more military bearing. The concept also gets flared wheel arches, a sport bar in the bed with LED lights, and a utility storage system. The grille is fitted with black accents and has a thin LED strip running across the top. Inside, orange is used for the door pulls and glove box handle, and the instrument panel and arm rests have more dazzle coloring. The truck also gets an upgraded exhaust kit, six-piston brakes, and a performance air intake. Chevrolet Introduces Silverado Special Ops Concept Military-inspired truck reinforces capability with go-anywhere style LAS VEGAS – Chevrolet's 2016 Silverado Special Ops concept imagines a unique rescue vehicle for special-operations forces. It is based on the Silverado 1500 Z71, which features a new front-end design and new technologies built into its strong, high-strength steel body structure and fully boxed frame, and draws its design inspiration from naval design aesthetics. "This Silverado concept is a multipurpose truck that reflects the go-anywhere, do-anything commitment of special-forces teams," said Jim Campbell, GM U.S. vice president of Performance Vehicles and Motorsports. The naval-inspired camo appearance, called Razzle Dazzle, was developed more than 100 years ago to disguise a ship's speed, direction and profile to the enemy's eye. It is based on a three-tone blue exterior color, marked by a distinctive array of varying colored lines and shapes intended to mask the ship. "We created light, medium and darker shaded areas within camouflage bands flowing down the hood, body sides and tailgate," said Todd Parker, director of design, Chevrolet Accessories.