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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.

GM drops price of Spark EV to $25,995; lease to $139/month

The drive to lower EV prices continues. GM announced today that the base model 2015 Chevy Spark EV 1LT would get a price cut to $25,995. That's $1,500 less than it used to be but the bigger news might be the lowered lease price. Instead of $199 a month, all that Chevy is asking for to get you into an all-electric Spark now is $139 a month (39 months, with no money due at signing), down from the 36-month, $199-a-month lease cost with a $999 down payment. Sadly, the number of states where the Spark EV can be bought is almost as small as the lease payment: the car is available only in California, Oregon and Maryland (well, Maryland won't be ready until the summer). GM is doing more than just lowering the MSRP. On top of the federal and state tax incentives available, GM is offering bonus cash in all three states ($1,000 in California, $1,200 in Maryland, and $3,500 in Oregon). If you're wondering why those numbers vary so much, take a look at the already-available state EV incentives in play: California offers $2,500 and Maryland $2,300. Somehow, they all balance out. If you do some addition with the $7,500 federal tax credit, you see that the Spark EV can be had for $11,000 off the MSRP no matter where you buy. If you qualify for everything, $14,995 is a darn good deal for an EV, especially one as fun as the Spark. Related Video: 2015 Chevrolet Spark EV Repriced to Offer Greater Value As low as $14,995 after full federal and state tax credits and Chevrolet Bonus Cash 2015-04-14 DETROIT – Chevrolet announced today Spark EV 1LT's new manufacturer's suggested retail price would start at $25,995. Depending on an individual's tax situation, the Spark EV is eligible for federal tax credit up to $7,500. "Chevrolet is committed to making EV driving more accessible, affordable and fun" said Steve Majoros, director of Chevrolet Car and Crossover Marketing. "The Spark EV is already the most efficient – and one of the most affordable – EVs you can buy. 2015 Spark EV customers will benefit from an impressive blend of technology, capability and low cost of ownership, now at an even more impressive price." California and Maryland Spark EV owners may also qualify for a $2,500 California state rebate or $2,300 Maryland excise tax exemption. Additional Chevrolet bonus cash is also available: $1,000 in California, $1,200 in Maryland, and $3,500 in Oregon. After full federal and state tax credits and Chevrolet bonus cash, the Spark EV could be as low as $14,995.

Surprise! GM putting aluminum in next-gen pickups

Last month, General Motors launched a series of ads touting the benefits of steel over aluminum – specifically, with regard to the Chevy Silverado versus the Ford F-150. (Kind of. We're not sure what a grizzly bear has to do with anything.) We took issue with the ads, with editor in chief Mike Austin saying they "reek of insecurity, and distract from the Silverado's strengths that could be used for positive advertising." But what bothers us more, is that yet another report surfaced claiming anti-aluminum GM will indeed use the weight-saving material in its next-generation fullsize trucks. On Tuesday, GM announced a $877-million investment for its truck plant in Flint, MI. But Reuters says that huge overhaul is because the trucks will use "substantially different equipment than the tools GM uses today." The report specifically states, "People familiar with the company's plans say GM's next-generation pickups and SUVs will make use of various materials, including aluminum and lightweight steel, to shed weight and gain fuel efficiency to meet tougher federal standards." The Silverado already uses a few aluminum components in the engine and hood, and if more widespread use will help GM build its best fullsize trucks ever, then that's great. Honestly, we have no reason to doubt that aluminum will be used in the next Silverado and GMC Sierra. We just hope GM remembers that nothing is ever truly deleted from the bowels of the Internet when it launches the subsequent "look how great aluminum is!" campaign. Related Video: News Source: Reuters Green Plants/Manufacturing Chevrolet GM GMC Truck aluminum steel