1955 Chevrolet Bel Air/150/210 on 2040-cars

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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.

2018 Woodward Dream Cruise: What to know and where to go

If there's anything that proves Detroit's motor-oil-in-the-veins, gearhead bonafides, it's the annual Woodward Dream Cruise, which will bring an anticipated 1.5 million or so people from near and far, plus tens of thousands of classic and custom and just plain weird cars, to a 16-mile portion of Woodward Avenue on Saturday for the 24th year. Loved by gearheads, collectors and the merely curious, who see it as the Motor City's version of Mardi Gras, and loathed by others, who deride it as the world's largest traffic jam, the Dream Cruise is nothing if not an explosion for the senses. What will you see there? Well, as Autoblog Managing Editor Greg Rasa put it last year, "There are historic cars. And works of art. Some are worth vast sums of money, and some are rat rods and rust buckets. And some are bizarre creations that make you ask, 'What were they thinking?'" A few things are certain: You will see many incredible automobiles. There will be plenty of T-shirts and other merch, official and not-so-much. It will be crowded, and probably hot. The Cruise will officially go from 9 a.m. to 9 p.m., though of course cruisers have been out already for weeks. And there are plenty of attractions, both on and off the pavement of Woodward. Tony Michaels, the Dream Cruise's executive director, said the event is special for the Detroit region. "Together we celebrate the automobile and what it has meant to us," he told Autoblog. "To see the these fantastic vehicles and the proud owners says so much about who we are and our pride. "People should take it in to see history running 16 miles down Woodward Avenue and to be a part of the greatest automobile event in America." Ford is once again serving as the Dream Cruise presenting sponsor and will hold the 20th anniversary of the Mustang Alley at the corner of Nine Mile and Woodward in Ferndale, where it expects as many as 1,000 Mustangs to line up. It will also show off its lineage of trucks at 13 Mile, along with several performance vehicles at Duggan's Irish Pub at 31501 Woodward in Royal Oak. The company on Thursday unveiled the 2018 Mustang Cobra Jet drag car to celebrate the nameplate's 50th anniversary. Just 68 examples are planned of the $130,000 limited-edition model Other Ford activities include: Sales of tickets for a raffle of a one-off Kona Blue Mustang Bullitt, starting at the media clubhouse at 2 p.m. Friday. The raffle itself takes place in November and will support juvenile diabetes research.

Hertz and GM team up to put 175,000 rental EVs on the road

Hertz and General Motors have announced a significant partnership that will send up to 175,000 electric vehicles into rental fleets across the country. The deal will unfold over the next five years and include vehicles from all GM brands.   The partnership will run through 2027. Hertz estimates that the electric fleet can save as many as 8 billion gasoline-powered miles, removing 1.8 million metric tons of carbon dioxide-equivalent emissions from the air. Hertz says it will invest in becoming the largest renter of EVs in North America and notes that it already has tens of thousands available at 500 locations in 38 states. By the end of 2024, it plans to electrify a quarter of its fleet. Electric rental cars are a great way for travelers wanting to avoid gas, and they make excellent urban commuter cars. Hertz will also likely save a few dollars by avoiding oil changes and other routine maintenance that gas engines need. However, a hidden societal benefit of this deal may come when Hertz’s EV rental customers begin shopping for new cars. Many people are skeptical of EVs for various reasons, including range, charging, ease of operation, and cost. Giving people a low-risk introduction to EVs and the ability to test-drive one without a pressuring salesperson could drive more people to electrics. At the same time, there's also the risk that renters wanting to take their Hertz-GM EV on a road trip into sparsely populated areas may return with charging and range-related horror stories. Hertz currently doesnÂ’t ask what youÂ’re planning to do with your rental, but it does offer a chat service for questions, and range information is presented clearly on each vehicle. Related video: 2023 Cadillac Lyriq walkaround