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NHTSA could add 1M cars to GM recall

The Detroit Free Press is reporting that the National Highway Traffic Safety Administration may expand a recall campaign for faulty brake lamps. The agency is currently looking into complaints that certain 2004-2011 Chevrolet Malibu models as well as some 2007-2009 Saturn Aura sedans may have brake lights that do not illuminate when the driver presses the pedal. Alternatively, the lamps may also illuminate without input from the driver. General Motors recalled 8,000 Pontiac G6 models from the 2005 model year for the same problem, and NHTSA is currently investigating whether to add 550,000 more G6 models built between 2005 and 2009 to the list for the same issue.
In addition, investigators are currently examining 97 complaints from Malibu and Aura owners with the same trouble. If NHTSA adds those models to the recall campaign, more than one million units could be covered. GM, meanwhile, says there have been no accidents or injuries as a result of the problem.

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.

Recharge Wrap-up: Long Beach ePrix, London's new electric buses

London will put 51 new electric buses into service. With the addition of these buses, two more routes (in addition to one already in operation) will be all-electric. Transport for London plans to have all of central London's 300 single-decker buses running on electricity or hydrogen by 2020. "The expansion of London's electric bus fleet demonstrates our commitment to reducing emissions from public transport in London," says Deputy Mayor of London for Environment and Energy, Matthew Pencharz. "The Ultra Low Emission Zone that will be introduced in 2020 is the most ambitious measure of its kind taken to tackle air pollution anywhere in the world, and it will transform our bus fleet into a cleaner, greener and more pleasant way of travelling for Londoners." Read more from Transport for London, and from Green Car Congress. The Chevrolet Volt is subject to a tie-rod recall. Along with 10 Cruze vehicles, one 2015 Volt has been recalled because of a tie rod that might not have been tightened to the steering gear correctly, which could lead to a loss of steering control. Chevrolet will replace the steering gear assembly, supplied by Robert Bosch Automotive Steering, for free. There have been no reported injuries from this issue. Read more at Detroit News. The Formula E Long Beach ePrix will take place on April 2, 2016. For the second season of the electric racing series, Long Beach is the only confirmed US host, as the spot on the calendar previously held by Miami still remains to be determined. More than 20,000 fans attended the inaugural Long Beach ePrix earlier this year, where Nelson Piquet, Jr. took first place before going on to win the Drivers' Championship. "It's extremely exciting to welcome the ePrix back to Long Beach for a second year," says Long Beach Mayor Robert Garcia, "and we are hopeful that this demonstration of innovation, sustainability, and cutting edge technology will return to our city year after year." Read more in the press release below. Related Video: LONG BEACH ePRIX TO RETURN APRIL 2, 2016 (July 14, 2015) – The Long Beach ePrix will return to the city streets on Saturday, April 2, 2016. The FIA (Federation Internationale de l'Automobile) World Motor Sport Council recently approved the calendar for the second season of the FIA Formula E Championship, with Long Beach scheduled as the sixth of 11 rounds in the series. Overall, 10 venues will host Formula E events, with the 2015-16 season beginning once again in Beijing on Oct. 17.