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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

Weekly Recap: Lamborghini to build SUV

Finally, Lamborghini will build a sport utility vehicle. The Italian supercar maker confirmed this week that it will launch a luxury SUV in 2018. It will be built at Lamborghini's soon-to-expand factory in Sant'Agata Bolognese in Italy, and will double the company's current sales volume. Lamborghini did not announce a name for the vehicle or other details, but noted a concept version, the Urus, was displayed at the Beijing motor show in 2012. It will be sold around the world, but it's expected to be a critical offering in the United States, China, and the Middle East. The automaker projects the SUV will sell about 3,000 units per year, and it will be the third product in Lamborghini's portfolio. It currently sells the Huracan and Aventador supercars. "The introduction of a third model line endorses the stable and sustainable growth of the company and signifies for us the beginning of a new era," Lamborghini chief executive Stephan Winkelmann said in a statement. The project is also a boon for Italy, which will get 500 new jobs in the Emilia Romagna region as Lamborghini's factory will nearly double in size. Ian Fletcher, principal analyst for IHS Automotive, said the SUV will position Lamborghini for future growth. "It could well also bring new customers to the brand [who] may find the dramatic styling of Lamborghini products appealing, but find its typical sports cars restrictive," he said. "If it is a success, the SUV could be a catalyst to Lamborghini broadening its portfolio further." OTHER NEWS & NOTES GM invests in Chevy Camaro factory General Motors is investing $175 million to upgrade its factory in Lansing, MI, to build the 2016 Chevy Camaro. The investment will pay for new tooling and equipment. The improvements include three new paint systems and two new robotic framers. GM will add a second shift at the factory to build the Camaro, resulting in 500 jobs. The automaker had dropped the plant to one shift last year amid slow sales for its products, the Cadillac ATS and CTS. GM is spending $5.4 billion over the next three years to upgrade its US facilities. Last week, GM announced plans to spend $439 million to build a new paint shop for the Chevy Corvette. While the Camaro and Corvette plant improvements are intriguing to enthusiasts, GM also confirmed this week that it is investing $1.2 billion in its Fort Wayne (IN) factory that builds trucks.