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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 dismisses Tesla tie-up talk

Despite recent rumors to the contrary, don't expect to see much collaboration between Tesla and BMW in the near future. Based on some rather prickly statements from the German automaker, Elon Musk might have even burnt some bridges in Bavaria with his latest proclamations. The spat stems from Musk's recent interview with German magazine Der Spiegel where he discusses future collaboration with BMW on "battery technology or charging stations" and the possibility of a battery factory in Germany. But apparently, any future tie-ups are news to the Bavarian automaker. In an interview with the German business publication Wirtschafts Woche, an unnamed spokesperson for the company claims Musk said it all for PR value and swats down most of the statements. BMW has no intention of acquiring Tesla shares, and they aren't working together on any tech. There's not much chance for future cooperation on a battery factory in Germany, either. BMW believes that the cells can just as easily be purchased from suppliers, like other auto parts. The one slight concession is that the spokesperson said that the German automaker would be willing to supply Tesla with carbon fiber. That's not an exclusive offer, though, and the company is open to negotiate such a deal with any interested automaker.

Autoblog's June 2019 Editors' Picks

Each year we review, test and rate hundreds of brand-new cars, trucks and SUVs. We rate these vehicles using the Autoblog score, giving a select few our Editors’ Pick. Here are the best cars we drove in June 2019. 2019 BMW 8 Series Everyone on the Autoblog staff loves a good grand tourer, so we were excited to get behind the wheel of the revived BMW 8 Series, specifically an M850i Coupe. A good GT needs to be as fast as it is stylish and comfortable, and the new 8 Series delivers. We particularly like the 523-horsepower twin-turbo 4.4-liter V8Â’s copious power and smooth ride quality, even on MichiganÂ’s pockmarked post-winter roads. We dig the interior design, too, though not everyone was in love with the exterior. ItÂ’s not the best-handling car in its class, and doesnÂ’t hide its sizable proportions very well, but itÂ’s still worth a look if youÂ’re looking for a big, fast cruiser.  2019 Ford Expedition Crossovers may be the hottest vehicles on the market, but thereÂ’s still a sizable demand for traditional body-on-frame SUVs like the Ford Expedition. These behemoths offer plenty of space in addition to truck-like capability. We like the Expedition's smooth ride, powerful twin-turbo V6 and sharp exterior design, though the interior can feel a bit cheap, especially on some of the more expensive trims. Adding options quickly puts it into Lincoln Navigator territory, and itÂ’s hard to recommend the Ford over the Lincoln when the latter packs the same capability into a far nicer package. Still, the Expedition is as good or better than the competition in most respects, and thatÂ’s why itÂ’s one of our picks. 2019 Toyota 86 Few cars at any price point are as much fun as the Toyota 86 (and its twin, the Subaru BRZ). We like the 86Â’s balanced chassis and sharp steering, and while itÂ’s not as nimble as its close rival the Mazda MX-5 Miata, the ToyotaÂ’s back seat and trunk make it a more usable vehicle. But while we like the 86Â’s driving position, the rest of the interior feels cheap and dated, especially the infotainment system. We complained about the anemic powertrain back in 2012, and itÂ’s only gotten worse as the years have gone by.