1984 Chevrolet El Camino Conquista 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.

2020 Ford Explorer vs 3-row crossover rivals: How they compare on paper

The 2020 Ford Explorer has finally landed, and if history serves as an indicator, it should be bigger than sliced bread. And people sure love themselves some sliced bread. This new Explorer may look familiar on the outside, but beneath the skin is a radically new rear-drive platform related to the Ford Mustang (as opposed to a front-drive platform related to the Ford Taurus and a Volvo from the 1990s). Turbocharged four- and six-cylinder engines now exclusively rest under its hood, which as you'll see below, both better anything its competitors offer. Ah, but if you're curious to know how the new 2020 Explorer compares to its various three-row family crossover rivals, take a look at the chart below where we stack it up against the 2019 Chevrolet Traverse, 2019 Honda Pilot, 2020 Hyundai Palisade, 2019 Subaru Ascent and 2019 Toyota Highlander. There are others of course (Mazda CX-9, Dodge Durango, GMC Acadia, VW Atlas), but we only had so much room on the chart, and these were the newest and/or most likely to be cross-shopped with the new Explorer. Engine specs and towing Although the Traverse's V6 just nips it on horsepower, the 2020 Explorer's base 2.3-liter "EcoBoost" turbocharged four-cylinder engine smokes it on torque. Therefore, "best-in-class" power seems like a fair claim from Ford. That there's also a 365-horsepower turbo V6 available, plus a hybrid and even-more powerful ST model on the way shows that Ford isn't kidding around under the hood. Curb weight also seems competitive for the segment. In terms of drivetrain, the Explorer is the only member of this particular group to come standard with rear-wheel drive (2.3-liter only). The Durango is the only other three-row, non-luxury crossover to do so. This is significant for two reasons: First, you could potentially do a power slide in an Explorer. Second, and more important, those in the Snowbelt will have to opt for all-wheel drive (it comes standard with the 3.0-liter). By contrast, a set of winter tires will probably do the job just fine if you want to save some money and gas by sticking with its rivals' standard front-wheel drive. Well, except for the Subaru Ascent — that's standard with AWD. In terms of towing, the Explorer takes the cake with as much as 5,300 pounds for the four-cylinder and 5,600 pounds for the V6. Everything else tops out at 5,000, though again, the Durango is capable of besting them all thanks to its Hemi V8 engine option.

Recharge Wrap-up: Ford HQ gets giant solar array, Chevy City Express gets 24 MPG city

Ford will be building Michigan's largest solar array at its Dearborn headquarters. With funding from DTE Energy, the solar carport will provide covered parking, as well 30 charging stations for electric vehicles. The array is expected to generate 1.13 million kWh per year for Ford's operations, and offset 794 metric tons of carbon emissions. Read more in the press release below. Chevrolet announced the fuel economy for the 2015 City Express, at 25 mpg combined. The cargo van is rated at 24 mpg in the city, and 26 mpg on the highway. Chevy credits the van's inline four-cylinder engine and continuously variable transmission for its impressive city mileage. For its customers - which are mainly businesses - "The fuel economy of the City Express will help stretch their dollar at the pump and give them the flexibility to invest the savings back into their business," says Chevrolet's Ed Peper. The City Express starts at $22,950. Read more in the press release below. Engineers at the University of Wisconsin have developed an efficient engine that runs on a diesel-gas blend. The engine, which uses a computer to control the blend proportions, is about 15 percent more efficient than the any diesel engine according to mechanical engineering professor Rolf Reitz. The team has put the experimental reactivity controlled compression ignition (RCCI) engine in a demonstration car - a 2009 Saturn. "This vehicle can do 50 miles per gallon," says Reitz, who believes the system could be improved further. Read more at Wisconsin Public Radio. The Southeast Alternative Fuel Conference and Expo will take place in October in Raleigh, North Carolina. Held at the NC Clean Energy Technology Center from October 22-24, the event will feature a variety of exhibitors, speakers and, most importantly, alternatively powered vehicles. "The three day conference will be a one-stop shop for fleet and transportation related decision makers to learn about return on investment, efficiency and alternative transportation fuels such as biodiesel, electricity, ethanol, propane and natural gas," says Anne Tazewell of the NC Clean Energy Technology Center. If you can't make it to Raleigh for the Expo, you can still enter to win a free two-year lease of a Nissan Leaf at the Center's website. Learn more about the event in the press release, below.