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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 Motorrad showcases Konzept eRR electric sport bike

At one end of the BMW spectrum are its electric vehicles like the i3 and i8. At the other, the motorcycles from BMW Motorrad. Now the Bavarian manufacturer is bringing those two areas of competence together in one vehicle. And it only has two weels. It's called the eRR, and it's an experimental electric motorcycle created in conjunction with the Technical University of Munich. It's based on the frame of the S 1000 RR sport bike, but ditches the 199-horsepower four-cylinder liter engine for an all-electric powertrain. Unfortunately, the company has yet to release any technical details, but promises it will do so at a later date. It's not the first time BMW Motorrad has tinkered with electric power. We've already seen the C Evolution electric scooter. But this is the first time it has packaged an electric motor into a sport bike this aggressive. If BMW were actually to build this thing, the eRR could prove a suitable foil to the Brammo/Victory Empulse, not to mention any other electric motorcycle that may find its way onto market in the coming years. BMW Motorrad presents the experimental vehicle eRR. Supersport dynamism and zero emission thanks to electric power. Munich. BMW Motorrad has a long tradition in pointing out new ways and thoughts for the topic „mobility on two wheels". For that, again and again many studies were presented in the past giving views to the future. The experimental vehicle eRR, created as a project with the Technical University of Munich, embodies an idea of an electric powered supersport motorcycle made by BMW Motorrad. Already a couple of years ago, BMW i showed the BMW Group's visionary and sustainable approach with the vehicles BMW i3 and i8 and their revolutionary design principles (aluminum chassis and passenger cabin made from carbon fibre) and BMW Motorrad's C evolution proved, that zero emission, riding fun and practicability do not exclude themselves. With presenting the experimental vehicle eRR BMW Motorrad goes one step forward and shows the possibilities of an all-electric drive in a supersport motorcycle. Regarding design and chassis technology the eRR leans on the supersport motorcycle S 1000 RR, however using an all-electric drive. Stephan Schaller, Head of BMW Motorrad, emphasizes: „Since their market launch, the RR is giving the creeps to motorsport athletes. If acceleration, handling or topspeed – the RR is setting standards.

No BMW M2 Convertible in the cards

Despite BMW's history of M-ing all the things, enthusiasts pining for a droptop version of the recently released M2 are about to get some bad news. In a recent interview with CarAdvice, M2 chief engineer Frank Isenberg confirmed, "There will not be an M2 Convertible." "We need to keep it as purist as we did with the 1 Series M Coupe," Isenberg told CarAdvice. "We've got such a nice M235i Convertible. And convertibles are not for racetracks, they're for cruising." Indeed, while the M2 might not be as hardcore as the 1M Coupe that came before it, it's pretty darn great, as we found out in our first drive earlier this month. BMW sees its latest two-door M as a special car, and one that will not spawn additional variants. That sort of makes sense, but remember, this is the same company that has no problem doing a heavy, folding hardtop version of its M4, and an ultra-grand-touring M6 Convertible. Related Video: