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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.

Totally uncovered BMW M3 caught by helmet cam

Sure, we've seen - and even ridden in - the 2015 BMW M3 before, but always under the cover of camouflage. Proving that it's always nice to be in the right place at the right time, a motorcyclist managed to capture a completely undisguised 2015 M3 (codenamed F80) on video during a closed-road photo shoot.
Road & Track has the helmet cam video, which shows the bright blue M3 doing a three-point turn as it follows a camera car possibly for an upcoming commercial or launch video. While the images are grainy, we do get to see some of the styling details for the next-gen M3. Aside from the extra set of doors, this M3 looks a lot like the Concept M4 Coupe we met a few months ago, including the bulging hood, oddly shaped door mirrors and the wide, vented front fenders. The aggressive fascia, big wheels/low-profile tires and quad exhaust outlets all but confirm this is the production M3 we'll be seeing at the Detroit Auto Show in a couple of months.
We've put together a gallery using screen shots from the video, but check out the video posted below to see the new M3 in motion.

BMW, VW partner with ChargePoint for high-speed charging network

To promote their plug-in electric vehicles, a number of electric vehicle makers are working overtime to get a charging infrastructure set up. Tesla is famously setting up a network of Superchargers around the world, and today BMW and VW have announced they are partnering with ChargePoint to install almost 100 DC Fast Chargers up and down the US coasts. Installing additional Level 2 chargers is also part of the plan. The new DC Fast Chargers will offer the SAE Combo connectors, which is available on both the e-Golf and the i3. The fast chargers will have "up to two 50 kW DC Fast chargers, or 24 kW DC Combo Fast chargers," BMW says. They will be installed roughly 50 miles apart between Boston and Washington, DC in the east as well as Portland, San Francisco, Los Angeles and San Diego in the west. The 24-kW DC Fast Chargers will fill up an empty i3 or e-Golf to 80 percent in a half-hour or 3.5-4 hours from the Level 2 cords. Speaking at an announcement ceremony at the Washington Auto Show today, ChargePoint CEO Pasquale Romano said that infrastructure investments like this will get more people to realize that they can use an electric vehicle as their only car, and Jorg Sommer, VP of product marketing and strategy for VW North America, said that it's clear that, "The EV is perfect for the daily driver." BMW, Volkswagen and ChargePoint Join Forces to Create Electric Vehicle Express Charging Corridors on the East and West Coasts. · A goal of nearly 100 DC Fast charging ports will be installed to support long distance and metropolitan electric vehicle travel with the BMW i3, Volkswagen e-Golf and other electric cars, along heavily trafficked corridors on both coasts, supported by Level 2 chargers. · These publicly available charging stations will be added to the existing ChargePoint network and can be easily accessed using a ChargePoint® or ChargeNow card. Washington, D.C., January 22, 2015 – At the 2015 Washington Auto Show, two of the top automakers, BMW of North America and Volkswagen of America, together with ChargePoint, the largest electric vehicle charging network, announced an initiative to create express charging corridors along heavily-traveled routes on the East and West Coasts.