1972 Porsche 911 E Targa 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.

Wingsuits are somehow involved in new season of 'Top Gear'

It's a shame that Matt LeBlanc is leaving "Top Gear," but there's a bit of solace in the situation: There's still one more season of him as frontman. BBC just released the new trailer for series 26, and it shows LeBlanc, Chris Harris and Rory Reid getting into all sorts of shenanigans around the globe. "Top Gear" announced LeBlanc's imminent departure back in May 2018, but he still had to finish one more season before leaving. Thus, the upcoming series will be his last, and it looks like he'll go out in a whirlwind of dust, bent metal, water spray and burnt rubber. The trailer shows everything expected from a season of the storied automotive show (well, everything except Hammond, May, and Clarkson, if you're one of those people). There will be precision driving, dubious stunts, name-calling and gobs of stunning videography. In the short one-minute clip, there are flashes of numerous attention-piquing vehicles. The new Bentley Continental GT, a Bentley Le Mans racer, Porsches, Ferraris, the Aston Martin Vantage, and the Mercedes-AMG GT all make appearances. And for some random fun, the boys are seen in wingsuits (doubtful it's actually them), and playing polo in some three-wheel rickshaws (before wrecking said rickshaws). We'll update with more information as soon as we know when the show will start. Related Video: News Source: BBC Celebrities TV/Movies Aston Martin Bentley Ferrari Mercedes-Benz Porsche Videos Top Gear chris harris matt leblanc rory reid

Porsche revisits the 911's dirty side with rally history film

It might not be a coincidence that there are rumors of Porsche revealing a safari version of the 911 at April's Beijing Motor Show, just as the Dakar Rally is about to begin. Adding fuel to the dusty desert fire is a just-released official video of Jeff Zwart driving the Porsche 953 that Jacky Ickx drove to victory in the 1984 edition of the race.
In the video, the seven-time Pikes Peak International Hill Climb winner talks about how he grew up with the 911; it wasn't only the car he learned to drive in, it was his choice of racecar no matter whether the course was tarmac or the dirty stuff.
You can decide for yourself if these recent events are mere coincidence while you enjoy the 953's exhaust note in the video below. If you've got the time to see the 953 during its race-conquering drive and find out what the ersatz Paris-Dakar Rally used to be, we've also included a broadcast of that 1984 race below as well. Fast-forward to 19:44 to see the Porsches cross the open dessert and 29:09 to watch one of them tackle the dunes.