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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.

Are you the 2016 BMW M2?

From the looks of these spy shots, BMW is back testing the hotter version of the M235i, the M2. We first brought you pictures of the lightly disguised coupe a few weeks back. While those original shots were on the road, it would seem that BMW has transitioned its testing to the Nürburgring.
Here, we get a better look at the M2 prototype's M-spec wheels. This particular car is missing the traditional quadruple exhausts that serve as an easy identifier for BMW M products, although our spies report that the tips, along with a more assertive front fascia, will arrive when the M2 makes its production debut.
We can't yet confirm any powertrain details, but previous rumors had the M2 getting its go from a tuned version of the brand's N55 turbocharged inline-six. Take a look up top for this latest round of spy photos of the BMW M2.

Alpina Edition 50 models boast 204-mph top speed, company's most-powerful V8 ever

The folks at Alpina bridge the gap between a full factory outfit and traditional tuners. It currently only builds around 1,700 cars a year, but you're not going to find any massive rear wings or garish paint from the company. Instead, the business has been perfecting how to make BMWs better for the last 50 years and has decided to celebrate with its most powerful road model yet. For the Edition 50 models, Alpina is crafting 50 sedans or wagons and 50 coupes for European buyers based around its B5 Bi-Turbo and the B6 Bi-Turbo, respectively. The real birthday present is the upgraded, twin-turbocharged 4.4-liter V8 under the hood. It makes 591 horsepower and 590 pound-feet of torque, a bump of 59 hp and 52 lb-ft from the regular versions. The extra grunt comes thanks to additions like an optimized intake, water-cooled intercoolers near the turbos, lightweight pistons and a titanium exhaust. Alpina claims that these celebratory vehicles can get to 62 miles per hour in 4.2 seconds and a top speed of 204 miles per hour. Beyond just the major improvement in power, these special vehicles wear Alpina's more aggressive, though still understated body kit. They also ride on an updated version of the company's famous wheels that feature added side cuts on the multiple spokes to reduce weight. These exclusive cars are only available in Alpina's own shades of green and blue, plus a special color called Edition 50 Sepia from BMW Individual. There are also special logos on the seatbacks and center console to further promote the models' limited nature. Celebrating the brand's birthday in one of these high-speed vehicles retails for 86,850 pounds ($130,000) for buyers in the UK. NEW 204 MPH SUPERSALOON CELEBRATES 50 YEARS OF ALPINA ENGINEERING EXCELLENCE 26/03/15 Extensively revised V8 is the most powerful roadcar engine in the company's history Nottingham - Bespoke car manufacturer ALPINA will create 50 remarkable saloons (or estates) and 50 similar coupes to celebrate the company's half century this year. Based on the B5 Bi-Turbo and the B6 Bi-Turbo respectively, each vehicle will include hand-crafted Edition 50 body and trim features and a remarkable, heavily revised V8 that will propel the luxury five seater from 0-100 km/h (62 mph) in 4.2 seconds and on to a top speed of 204 mph. ALPINA's fifty year heritage includes the creation of some of Europe's most highly-regarded luxury performance road cars and iconic race cars including the legendary BMW 3.0 CSL.