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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.

Top Gear's latest trailer shows off a golden Bugatti Chiron

Top Gear is returning on March 5, and after a lackluster first series with the new hosts, the new group seems determined not to hit a sophomore slump. Chris Evans is gone, and the latest teaser trailer shows the new trio of Matt LeBlanc, Chris Harris, and Rory Reid strapped into some pretty fantastic cars, including the Bugatti Chiron and the Ford GT. All of the typical Top Gear segments appear to be present, though the quick cuts don't give us many details. The trailer shows a copious amount of powerslides from an assortment of cars, and even Chris Harris racing around Daytona. Aside from the Bugatti and Ford, cars from Porsche, Lamborghini, Ferrari, BMW, Aston Martin, and Alfa Romeo are all present. Co-hosts Eddie Jordan and Sabine Schmitz don't appear at all, so it seems their roles may be downplayed to focus on three guys, as was the case pre-reboot. We have some hope for this re-relaunched show and will be keeping an eye out for more details in the lead-up to the series premiere. Related Video: News Source: YouTube Celebrities TV/Movies Alfa Romeo BMW Bugatti Ferrari Ford Lamborghini Porsche Top Gear chris harris Bugatti Chiron matt leblanc

GRAND-AM, IMSA announce deal to bring DTM racing to US

It won't be until 2015 at the earliest, but the International Motor Sports Association (IMSA), Grand-Am and the Internationale Tourenwagen-Rennen have agreed to a licensing and cooperation deal that could bring a version of Germany's DTM series to the US.
When the American Le Mans Series and Grand-Am are officially combined next year, the resulting body will be called United SportsCar Racing (USCR). IMSA will be the sanctioning body for that series, and DTM races could be run as support events. It was also suggested by an ALMS chief that DTM races could be standalone or join NASCAR and IndyCar weekends.
With the so-called DTM America finally agreed to, there is now a way for manufacturers to run the same DTM-type cars in Europe, the US and Japan - last year Japan's Super GT series agreed to adopt "the basic technical regulations" of DTM for the GT500 class, the top class in the series. That already puts six manufacturers in play: Mercedes-Benz, Audi and BMW that run in Germany's DTM and Honda, Nissan and Lexus that run in Super GT. The DTM oversight body has invited American brands to Germany for the opening round of the 2013 season, and will begin actively courting their participation in the US series. Check out the press release from Audi with comments on the deal below.