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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.

2016 Chevy COPO Camaro wears drag to SEMA [w/video]

Attendees to this year's SEMA Show get to be the first to check out Chevrolet's latest COPO Camaro that's now based on the new, sixth-generation model. As before, they packs a bevy of racing modifications to rocket down drag strips across the country. All of the interested customers might not get one of these hand-built machines, though, because Chevy is sticking with the tradition of only building 69 of them for 2016. Devised to compete NHRA Stock and Super Stock Eliminator classes, the latest COPO Camaro features the lighter, more rigid platform of the sixth-gen model. Buyers can choose from an array of V8s for power, including a supercharged 350-cubic-inch engine, a naturally aspirated 427, or an LT-based 376. All of them come with a race-prepped Turbo 400 three-speed automatic, solid rear axle, and adjustable suspension. The COPO on display for SEMA wears custom styling from drag racer Courtney Force that combines a Red Hot and black color scheme with her name slashing across rear fender. This one also packs a concept 350-cubic-inch V8 with a 2.9-liter Whipple supercharger. If you're interested in owning it, the car will cross the auction block at a Barrett-Jackson sale in 2016, and the proceeds will go to the United Way. Related Video: CHEVROLET INTRODUCES GEN SIX COPO CAMARO Courtney Force-designed show car to be auctioned for United Way LAS VEGAS – With assistance from NHRA Camaro Funny Car driver Courtney Force, Chevrolet introduced the Gen Six COPO Camaro today at the SEMA Show. After visiting the COPO build center, Force collaborated with Chevrolet designers to create a custom appearance for the 2016 COPO Camaro SEMA show car. It will be auctioned at a Barrett-Jackson sale in 2016, with the proceeds going to United Way. Chevrolet will build 69 COPO Camaro race cars for 2016, extending the production legacy that began in 2012 with the fifth-generation Camaro. Like the previous editions, the new COPO Camaro is designed for NHRA's Stock and Super Stock Eliminator classes. "With the new Gen Six Camaro as its foundation, the 2016 COPO Camaro begins the next chapter of an historic racing legacy," said Jim Campbell, Chevrolet U.S. vice president of Performance Vehicles and Motorsports. "It's great to have Courtney Force on Team Chevy and to work with her on the design of the new COPO Camaro show car.

GM won't really kill off the Chevy Volt and Cadillac CT6, will it?

General Motors is apparently considering killing off six slow-selling models by 2020, according to Reuters. But is that really likely? The news is mentioned in a story where UAW president Dennis Williams notes that slumping US car sales could threaten jobs at low-volume factories. Still, we're skeptical that GM is really serious about killing those cars. Reuters specifically calls out the Buick LaCrosse, Cadillac CT6, Cadillac XTS, Chevrolet Impala, Chevrolet Sonic, and the Chevrolet Volt. Most of these have been redesigned or refreshed within the past few model years. Four - the LaCrosse, Impala, CT6, and Volt - are built in the Hamtramck factory in Detroit. That plant has made only 35,000 cars this year - down 32 percent from 2016. A typical GM plant builds 200,000-300,000 vehicles a year. Of all the cars Williams listed, killing the XTS, Impala, and Sonic make the most sense. They're older and don't sell particularly well. On the other hand, axing the other three seems like an odd move. It would leave Buick and Cadillac without flagship sedans, at least until the rumored Cadillac CT8 arrives. The CT6 was a big investment for GM and backing out after just a few years would be a huge loss. It also uses GM's latest and best materials and technology, making us even more skeptical. The Volt is a hugely important car for Chevrolet, and supplementing it with a crossover makes more sense than replacing it with one. Offering one model with a range of powertrain variants like the Hyundai Ioniq and Toyota Prius might be another route GM could take. All six of these vehicles are sedans, Yes, crossover sales are booming, but there's still a huge market for cars. Backing away from these would be essentially giving up sales to competitors from around the globe. The UAW might simply be publicly pushing GM to move crossover production to Hamtramck to avoid closing the plant and laying off workers. Sales of passenger cars are down across both GM and the industry. Consolidating production in other plants and closing Hamtramck rather than having a single facility focus on sedans might make more sense from a business perspective. GM is also trying to reduce its unsold inventory, meaning current production may be slowed or halted while current cars move into customer hands. There's a lot of politics that goes into building a car. GM wants to do what makes the most sense from a business perspective, while the UAW doesn't workers to lose their jobs when a factory closes.