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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.

Here's how Detroit is selling more luxury vehicles than Germany and Japan

Now there's an attention-grabbing headline, eh? Although the answer to the riddle - pickup trucks and SUVs - might be somehow deflating, the numbers involved deserve a going over. According to TrueCar's figures (click on the table to enlarge), six of the year's ten best-selling vehicles in the US that sell for a transaction price above $50,000 are body-on-frame, and the Mercedes-Benz E-Class is the only foreigner to crack the top five. Every enthusiast knows that pickup trucks are 'Murica's most popular vehicle by a colossal margin, and there have been plenty of reports about the popularity of luxuriously appointed trucks and SUVs, but compare these figures from TrueCar: 70 percent of Chevrolet Tahoe sales have a transaction price above $50K, and The Bowtie is expected to make $3.9 billion in revenue on 66,945 predicted high-dollar sales; 95.1 percent of E-Class sales break $50K, so the German company will make $4.0 billion on 67,006 predicted sales in that pricing sphere. It's about the only time you'll see the Tahoe ranked right next to Mercedes' bread-and-butter sedan. Ram is ahead of those two with $4.2B coming from $50K-plus sales. The Ford F-Series does almost as much revenue as the next three combined, with an expected $10.8 billion coming from sales of trucks over $50K - more than a quarter of the model's total sales, when a base F-150 can be had for about $26,000. Yes, the Germans make a lot more money on fewer sales, but considering the comparison, the bottom line isn't too troubled by such facts. Weighing like-for-like, the full-size Ford walks it in every category; elsewhere, the Chevrolet Silverado outsells the Ram, but the Ram outsells the Chevy by 6.7 percent above $50K. And for all the flak GMC takes over swapping out grilles, the Sierra also outsells the Chevy in the well-appointed segment, 16.1 percent of sales versus 11 percent – the Professional Grade brand is a huge profit center for The General. You'll find more info in the TrueCar press release below. TrueCar finds pickup trucks far outsell premium brands among top 10 vehicles over $50,000 Ford F-Series pickup sales over $50,000 surpass combined BMW 3, 5, 7 Series luxury car sales SANTA MONICA, Calif. (December 10, 2014) - TrueCar, Inc., the negotiation-free car buying and selling platform, finds mainstream pickup trucks and sport-utility vehicles dominate U.S.

GM to make most cars LTE hotspots for 2015

General Motors isn't the first automaker to deliver in-car Internet access, but a proposed plan announced today could make the technology more widespread than any of its competitors have offered. By the 2015 model year, most Chevrolet, Buick, Cadillac and GMC products in the US and Canada will offer 4G LTE mobile broadband access. Initially, GM will just be pairing with AT&T to deliver this service, but additional carriers will be revealed in the future.
Current in-car Wi-Fi hot spots are limited to 3G, but GM says that 4G LTE is 10 times faster than 3G service and will allow for full Internet access, including streaming video for entertainment as well as services like real-time traffic updates and navigation driving directions. There is also no need for a paired smartphone with this new system, which should make it easier to use, and GM and AT&T will also be working together to develop new apps for customers.
Buyers can expect to start seeing 4G LTE in their cars starting next year, and GM is already planning to expand the service to other global markets as well. All of the information from GM's announcement is posted in a press release below.