1995 Bmw M3 Base Coupe 2-door 3.0l 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.

Why BMW doesn't plan to integrate Apple's iOS in the Car

While watching Apple introduce iOS in the Car during its WWDC keynote on Monday, we wondered how automakers, even the 14 who've already signed up to integrate this new in-car functionality of iOS 7, will feel about having the Cupertino company's mobile operating system supplant their own in-car systems. After all, some OEMs like Ford, General Motors and many luxury automakers have sunk millions of dollars into developing their own advanced infotainment, navigation and communication platforms like MyFord Touch, CUE and older systems like iDrive.
One automaker has now spoken up. A BMW spokeperson was interviewed by someone in the news department of British auto dealer group Arnold Clark and confirmed that the company would not be getting in line to integrate iOS in the Car anytime soon. The reason, as we suspected, is that BMW believes its own products developed over the last decade are both plenty good and already so deeply integrated with other systems of the car that, as told to Arnold Clark, "it would not be that straightforward to start changing all of the architecture of a car as has been implied [by Apple]."
While BMW isn't interested in spending more money to integrate Apple's services and functionality over its own, it has spent a good bit already to integrate iPhone functionality in its cars, including the relatively rare ability to support iPod Out and display Apple's own interface on Mini models with the optional Mini Connected feature, as well as committing to integrate Siri 'Eyes Free' functionality.

Bryant Gumbel and Katie Couric equate BMW i3 with the Internet

BMW fancies its new i3 electric car as something revolutionary – which, to be entirely honest, it is. But while we as automotive enthusiasts might know this, the general populous may not, which is why the German company is shelling out what is no doubt a substantial sum of money for a spot during this year's Super Bowl. Starring former Today Show hosts Katie Couric and Bryant Gumbel, the spot, called Newfangled Idea, focuses on another arguably misunderstood technology – the Internet. Starting with a now-humorous segment from 1994 that sees the pair discussing the then-new idea of the Internet – what does "@" mean? – Katie and Bryant then find themselves in an i3, asking very similar questions. Take a look at the video, up top, and then scroll below for the outtakes and a short behind-the-scenes segment from the clip. Related Video: