2015 New Automatic 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.

BMW's DriveNow car sharing shutting down in SF next month

BMW's DriveNow car-sharing service is suspending operations in San Francisco next month after more than three years. The culprit? Not enough parking spots in the City. BMW debuted both DriveNow car-sharing and its ParkNow service in the City by the Bay in August 2012, initially launching with the ActiveE plug-in vehicle and later moving over to the i3. While there probably wasn't a shortage of folks looking to drive those cars, it was the ending part of that equation that proved problematic. That's because San Francisco hasn't been able to clear out enough street-parking spots to make the program work properly, despite adding 80 spaces for the 150 cars in the program back in 2014. "We hope to return to San Francisco in the future and will continue to engage with the City on possible solutions that will allow you to experience the full benefits of our one-way car sharing service," said DriveNow CEO Richard Sternberg on the company's website. "In the meantime, we are focusing our efforts on new cities where our transportation solution can flourish. We would like to thank you for your loyal support and embracing flexible car sharing as an alternative transportation method." As far as that expansion to other US cities, BMW hasn't been specific. Bimmer also runs the DriveNow program in three Germany cities as well as Copenhagen, Vienna and London. So, DriveNow apparently has an easier time finding parking spots in London than in San Francisco. Why BMW couldn't use a flexible parking system for its one-way rentals like the similar Car2go program uses remains a mystery. Related Gallery BMW i3 Available Through DriveNow In Germany View 17 Photos News Source: DriveNow via BMW BlogImage Credit: DriveNow/Facebook Green BMW California parking drivenow

2015 BMW 228i xDrive

Has BMW lost its edge? The answer to that depends on what vehicle you're discussing. The company's products, while still quick and agile, are softer and more forgiving than they've ever been. And while this change may be worrying if we're talking about an M3 or an M5, is it necessarily a bad thing for more mainstream models? That's our question after a week behind the wheel of the BMW 228i xDrive, a vehicle that succeeds the beloved, driver-focused BMW 1 Series. In some ways this new car is a let-down, but in many other areas the new 2 Series is just plain better. The latter is particularly true if we're talking about the new sheet metal. While the 1 Series was a great source of compact, rear-drive entertainment, it wasn't a pretty car. The new 2 still isn't a stunner, but it benefits from BMW's latest design language. It looks wider and more muscular than the squat 1 Series, although certain elements, like the daylight opening and rear taillights, look like they were plucked right from the old car. Overall, BMW has crafted a more premium aesthetic for the exterior of its entry-level coupe. A weak spot for the 1er, the 2 Series cabin sports a similarly upscale redo. Like the last-gen car, the top of the dash is home to a master display for the iDrive system (a neutered, non-navigation version on our test car), while the lower half of the center stack is dedicated to analog controls for the HVAC and audio. The dash layout is similar to the 1 Series, but the execution feels more upscale. The trim around the radio and climate controls includes aluminum and gloss accents. The passenger side dash and center console ditch soft-touch plastic for authentic materials – our car uses real brushed aluminum, although piano black and wood are also available. As with all recent BMWs, the combination of the automatic gear lever, the knob and buttons of the iDrive system, and the toggle switch for the Driving Dynamics Control system mean there's a lot of clutter where the driver's right hand falls. What hasn't changed with the 2 Series is the excellent relationship between the driver and the primary controls. Our test car wears the Sport Line package, which does without BMW's obnoxious, too-large-diameter M Sport steering wheel. Instead, there's a thick-rimmed wheel with textured leather and red contrast stitching. It feels more natural than the oversized M wheel, while this car's large paddle shifters have a solid, well-damped action.