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Volvo's SuperTruck 2 looks ready to extend a ramp for K.I.T.T.

In 2009, the U.S. Department of Energy (DOE) entered a public-private partnership with willing Class 8 truck makers, the goal of the partnership to dramatically improve the freight efficiency of over-the-road (OTR) trucks. The term "freight efficiency" refers to freight-ton efficiency, a different metric than miles per gallon because it takes into account the weight of the truck; a lighter tractor-trailer can carry more weight before reaching the 80,000-pound legal maximum on most U.S. highways. Volvo, Daimler (which owns the Freightliner and Sterling brands), Navistar (International), and Peterbilt signed on the the partnership to develop what's being called a SuperTruck. Volvo, Daimler, and International make their own engines, Peterbilt teamed up with Cummins, and all four found their own trailer manufacturers to work with. Those four makers debuted their first iterations of what's being dubbed SuperTrucks about six years ago. This year has been all about SuperTruck 2, Volvo the last of the quartet to show what it's achieved. The goal for SuperTruck 1 was to achieve a 50% increase in freight efficiency compared to a 2009 baseline, the baseline in Volvo's case being a 2009 VNL 670 tractor. The goal for SuperTruck 2 was another 50% improvement. Volvo said its internal goal was a 120% betterment compared to 2009, and that it exceeded the mark with a 134% increase. The company said the huge gains came primarily from aerodynamics: A wedge-shaped front with a smaller frontal area thanks to a smaller cooling package; the heavily curved, wraparound windshield; the tractor's adjustable ride height; using camera for side mirrors; and adding a boat tail to the back of the trailer, plus enough fairings and skirts front-to-back to make the tractor and trailer look like a single unit when driving in a straight line. Volvo did make changes to its rolling lab that aren't likely to infiltrate the U.S. market anytime soon. It's common for U.S. OTR trucks to use a 6x4 configuration, with two axles behind the cab, both driven. Volvo's SuperTruck 2 went with a 4x2 setup common in Europe, using a single axle behind the cab, and fitted a composite driveshaft. Combined with making the chassis out of aluminum instead of steel, and trailer partner Wabash providing a lightweight aluminum van, the tractor-trailer combo weighed just 27,000 pounds.

Volvo XC40 and C40 electrics get new motors, more horsepower, longer range

Late last year came reports of improved versions of the Volvo XC40 Recharge and C40 Recharge for Europe. Configurators over the Atlantic showed there wouldn't just be new rear-wheel-drive models, but more battery, more range, and faster charging. The Swedes have finally published the official list of updates, the tweaks even better than the reportage and websites showed. First, the rumors are true, Volvo is back in the rear-driver game after 25 years on the sidelines. The automaker took the previous e-motors off the front axle, putting its in-house-developed, more powerful, and more efficient e-motor on the rear axle. This first use of the new e-motors bumps output from 228 horsepower to 235 horsepower in the RWD trims when combined with the 60-kWh standard range battery. That, plus cooling improvements for the pack, means the XC40 Recharge's range jumps from 425 kilometers on the WLTP cycle to 460 km (285 miles), the C40 Recharge's range going from 438 km to 476 km (296 miles). Plugged into a charger capable of at least 130 kW, refilling from 10% to 80% takes about 34 minutes.  We specified "standard range battery" because another new treat is a second RWD trim: Volvo will plug its 82-kWh battery into the powertrain for those willing to pay. But wait, there's more: The big pack powers an even juicier e-motor making 248 hp. The added gumption boosts range in the XC40 Recharge to 515 km (320 miles), in the C40 Recharge to 533 km (331 miles). And again, improved cooling permits uprated charging speed of 200 kW, cutting the run from 10% to 80% SOC to approximately 28 minutes. Dual-motor variants make the change to asymmetric output as revealed before, giving up two 201-hp e-motors for a new 156-hp motor on the front axle and that in-house 248 hp motor on the rear. In conjunction with better cooling, the XC40 Recharge Twin Motor climbs to 500 km (311 miles) of range on a charge, a 62-km hike, the C40 Recharge Twin Motor to 507 km (315 miles), a 56-km enhancement.  Marginal gains also come from a set of more aerodynamic 19-inch wheels.  The updated twin-motor siblings are expected to enter production in May, the single-motor versions in the fall. We only get the Twin Motor models here. If our variants reflected the same range extensions as in Europe, the 14% rise for the XC40 Recharge would give our car a 255-mile range, the C40 a 12% boost to 254 miles of range.

Thanks for keeping us on our toes, Detroit Auto Show [w/poll]

Here at Autoblog, we love unexpected debuts at auto shows – and judging by our Detroit Auto Show comments and traffic, you do, too. Surprise reveals have been fewer and farther between in recent years with so many ways for vehicles to be teased or leak out, but this week's show has been a revelation. More to the point, it's been a series of revelations, with automakers from around the globe successfully delivering a brace of concept and production surprises. It's made our jobs a lot more exciting and challenging this week, and even though it's actually more work to react and run-and-gun when the sheet is pulled on a surprise reveal than it is to publish an already-written embargoed story, we've had more fun covering this show for you than any domestic show in memory. We hope you've enjoyed the surprises along with us. To that end, borrowing the words of an unnamed automaker PR flack, we'd like to thank the following automakers for enduring "mountain of antacids" and that "creeping sense of paranoia" necessary to keeping ones' wares totally under wraps until the sheets are pulled off the sheetmetal: Buick Avenir concept Chevrolet Bolt concept Ford GT concept Ford Mustang Shelby GT350R Ford F-150 SVT Raptor Hyundai HCD-15 Santa Cruz concept And while we're at it, we'd like to throw in an shout-out to Detroit's substantially revised and revitalized Cobo Center, and in particular, the redone Michelin media center, which is arguably the single best accommodations for writing show stories that we've encountered on the entire international circuit. Well done, everyone. Thank you, and keep the surprises coming. Auto News Detroit Auto Show Buick Chevrolet Ford Hyundai Volvo 2015 Detroit Auto Show