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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.

Chevy Spark EV will go on sale in Maryland

The single-charge range of a Chevrolet Spark electric vehicle may not blow away anyone who's used to driving on a topped off tank of gas. But a full charge will actually get a Spark EV about halfway across the state of Maryland. Which is good because that state will be the first on the East Coast to sell the battery-electric model. General Motors said this week that Chevy Spark EV sales will start in Maryland this spring, and that federal and Maryland tax credits will get the out-of-pocket price of the Spark EV below the $18,000 threshold. GM took the opportunity to tout the Spark EV's 119 miles per gallon equivalent rating and says Maryland has sufficient charging infrastructure for drivers to welcome the EV without too much trouble. Last June, Spark EV distribution was reported to be ready to extend beyond the Pacific Coast. Specifically, Ohio was thought to be next in line to get Spark electric vehicles after four state car dealerships listed the model on their websites. GM's Randy Fox, however, quashed that real quick, saying only California and Oregon had sufficient infrastructure to support the Spark EV. GM first announced the Spark EV for public (or at least American) consumption back in 2011. Last year, the General sold 1,145 Spark EVs, up 87 percent from 2013. For more on the Maryland expansion, take a look at GM's press release below. Chevrolet Spark EV Plugs into Maryland Customer demand drives addition of East Coast; features locally sourced drive unit 2015-01-22 WASHINGTON, D.C. – Chevrolet will start selling the Spark EV in Maryland this spring, expanding the pure electric mini-car's "range" to the East Coast. The Spark EV is the most efficient U.S. retail electric vehicle on the market, delivering an EPA-estimated combined city/highway 119 MPGe fuel economy equivalent and 82 miles of EPA-estimated combined city/highway range. It is priced as low as $17,845, after federal and Maryland tax credits – and it features a locally sourced electric motor and drive unit, manufactured at General Motors' Baltimore Operations facility in White Marsh, Md. "The Spark EV has been one of the most well-received electric vehicles in the industry and customer demand helped make the decision to expand its availability to Maryland," said Steve Majoros, Chevrolet director of car marketing.

EarthCruiser adds a bigger camper option to its heavy duty pickup line

EarthCruiser is a camper and expedition vehicle company based out of Oregon that we've previously covered for its huge commercial truck-based machines. But they offer more than that, from drop-in campers for smaller pickups to heavy duty pickup conversions. The company's latest product is one of the latter, offering a larger camping area than the current EXD model. This new camper conversion is called the Terranova. The big differentiator between it and the EXD is the camper section, which extends over the truck cab on the Terranova. This means that bed space can be moved to above the truck cab, instead of having to use a convertible dinette. So less reconfiguring, and generally more usable space. One other major difference is that the EXD is only available for the Ram 3500 and Ford F-350. The Terranova is being designed for both of those trucks as well as the Chevy Silverado 3500. The EarthCruiser Terranova is otherwise very similar to other EarthCruiser models. The camper section is made of fiberglass and plastic, and the pop-up roof is insulated with foam. The curtains are triple-layered. The company says it can house four people. It comes with a freshwater tank and pump to help supply the kitchen sink, drinking water tap, bathroom sink and indoor and outdoor showers. There's also a cassette toilet. The kitchen features an induction stove top and small refrigerator and freezer. A fan system is standard, and air conditioning is optional. Power comes from a 400-aH lithium-ion battery. The Terranova isn't yet available. EarthCruiser is finishing up design and engineering, and it plans to have finished examples early next year. The company is taking reservations now, though. Pricing hasn't been announced, but an EXD runs between $220,000 and $265,000, and we would expect the Terranova to cost even more. Related Video: Featured Gallery EarthCruiser Terranova Expedition Camper renderings Chevrolet Ford RAM Truck Off-Road Vehicles Special and Limited Editions RVs/Campers