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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.

BMW planning to stretch i3 into i5 family hauler?

If you're sweet on the new BMW i3 but wish it had more space to carry people and stuff, we've got good news for you. According to Autocar, BMW is planning on stretching the platform that underpins the i3 to create a new model, expected to be called i5.
The stretch job would add an extra four inches of legroom in the back and another six inches of rear overhang to the benefit of cargo space. The result would create a vehicle longer than the current Mini Countryman - although the next Countryman is likely to be even larger. As Autocar points out, the process of extending the i3's composte passenger cell likely wouldn't be as difficult or cost-intensive as lengthening a conventional metal chassis, although the rear doors would need to be re-engineered.
Whether the resulting vehicle would more closely resemble a hatchback, wagon, minivan or something in between remains to be seen, however BMW is said to have already registered the nameplates i1 through i8, signalling that the possibility is at least there to add more members to its new EV family.

BMW working on 2 Series Active Hybrid Tourer

The cover may have officially been pulled off the BMW 2 Series Active Tourer at the Geneva Motor Show, but BMW has apparently continued working on other variants behind closed doors. While at first glance this prototype looks like any other Active Tourer, the "Hybrid Test Vehicle" stickers on the passenger door and rear bumper give it away as something a little different.
Details about the hybrid Active Tourer are somewhat sketchy at the moment, but BMW indicated its likely direction for the electrified hatchback in the earlier Concept Active Tourer. It used a hybridized 1.5-liter turbocharged three-cylinder engine coupled with an electric motor with a total system output of 190 horsepower and 147 pound-feet of torque. The company claimed that it had a roughly 19-mile electric range and could hit 62 miles per hour in under 8 seconds. However, the Bavarian automaker hasn't said yet whether this powertrain would be used in the production version.
The internal combustion 2 Series Active Tourer is rumored to come to the US in 2015. Given the nearly complete look of the test car, the hybrid might not be too far behind.