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Jeep Grand Cherokee, BMW i8, Ford F-150 win 2015 Green Car Awards in DC [w/video]

There were three shiny trophies handed out at the Washington Auto Show last week by Green Car Journal, and they went to three different examples of what "green" means in the automotive industry today. The Jeep Grand Cherokee EcoDiesel won the award for the 2015 Green SUV of the Year, the BMW i8 was named the 2015 Luxury Green Car of the Year and the Ford F-150 took the 2015 Green Car Technology Award honor. There is a case to be made that the aluminum body of the new Ford truck will make a bigger impact in the overall fuel usage in the US than almost any other vehicle, given the numbers of F-150s that Ford sells each year. The B20 biodiesel-capable Jeep gets up to 30 miles per gallon on the highway. And the i8 puts all sorts of new, fuel-saving technologies into an attractive package. Looking over the winners, and the list of finalists you can see in our photo gallery, and you can see that the definition of green is expanding every year. You can watch Green Car Journal editor Ron Cogan hand out the 2015 awards in the video below and we'll for sure be paying attention to what wins next year. 2015 Luxury Green Car of the Year, Green SUV of the Year and Green Car Technology Winners Announced WASHINGTON, Jan. 22, 2015 /PRNewswire/ -- Green Car Journal has named the Jeep Grand Cherokee EcoDiesel its 2015 Green SUV of the Year™ and the BMW i8 its 2015 Luxury Green Car of the Year™, with the aluminum-bodied Ford F-150 earning the magazine's 2015 Green Car Technology Award™. Winners were determined by a jury of Green Car Journal editors and automotive experts. The prestigious awards were announced in Washington, D.C. today at a Green Car Awards™ press conference held during the Washington Auto Show's Public Policy Day at the Washington Convention Center. "These are truly commendable vehicles representing the 'best-of-the-best' in so many ways," said Ron Cogan, editor and publisher of the Green Car Journal and CarsOfChange.com. "The auto industry's very early focus on small cars and efficiency-for-environment tradeoffs has evolved to now include a more dynamic field of 'greener' models in all vehicle classes. Those wanting greater efficiency or better environmental performance are no longer constrained by limited choices or vehicle types that fall outside their top purchase preferences.

2014 BMW 328d rated at 32/45 mpg

BMW still hasn't released official fuel economy numbers for its diesel-powered 2014 328d, but now, those mileage ratings have been posted on the EPA's FuelEconomy.gov website. As expected, the 328d is quite an efficient little machine, with the rear-wheel-drive sedan good for 32 miles per gallon in the city and 45 mpg highway. That even bests the 30/42 mpg of the smaller Volkswagen Jetta TDI.
The last time BMW offered a diesel 3 Series in our market, it was the six-cylinder 335d, which - while mighty quick and excellent to drive - was only offered as a rear-wheel-drive sedan and was rated at 23 mpg city and 36 mpg highway. For 2014, BMW will offer the 328d with optional xDrive all-wheel drive, though that reduces the fuel economy numbers to 31/43 mpg. Beyond that, the BMW will even sell you a 328d xDrive wagon, which nets the same 31/43 mpg rating, according to FuelEconomy.gov.
Look for the 2014 BMW 328d to hit dealerships this fall, and when it launches, it will be the only diesel offering in its class (until the next Mercedes-Benz C-Class arrives, anyway). Lexus and Infiniti will offer hybrid versions of the IS and Q50, respectively, but we've always had a taste for torque, and the 328d's 2.0-liter engine with 180 horsepower and 280 pound-feet of twist shouldn't disappoint.

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.