2008 Volvo C70 T5 Convertible 2-door 2.5l on 2040-cars

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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 adds 48V hybrid system to a bunch of 2022 models

In 2019, Volvo announced an updated powertrain fitted with a 48-volt mild hybrid system. The integrated starter-generator and regenerative brake-by-wire refilling a small battery could increase fuel economy by up to 15% in real-world driving. There are three layouts, dubbed B4, B5, and B6 that the Swedish automaker's already been rolling out globally. Next year two of them, the B5 and B6, come to the U.S. for the first time under the 2022 Volvo S60, S90, V90 XC, and XC60. The EPA's fuel economy site shows all of those models making small fuel economy gains, too. The B4 and B5 powertrains contain both gas and diesel mild-hybrids, the B6 is gas-only. All of the gas options (Volvo doesn't offer diesels here) will start with a 2.0-liter four-cylinder, the B5 adding a turbocharger, the B6 adding a turbocharger and a supercharger.  Per the EPA, the front-wheel drive 2021 Volvo S60 returns 23 miles per gallon in the city, 34 on the highway, and 27 combined. The new 2022 Volvo S60 B5 betters that with 26 city, 35 highway, and 30 combined. The 2022 S60 B5 AWD bests the 2021 model with the both versions of the non-hybrid 2.0-liter engine by one to three miles per gallon in nearly every category. The only model that does better, for obvious reasons, is the 2021 S60 AWD PHEV, which has been renamed S60 T8 AWD Recharge. The 2022 Volvo XC60 comes in AWD B5 spec with the turbocharged 2.0-liter, and AWD B6 spec with the turbo- and supercharged 2.0-liter. Gains are smaller here, the EPA showing a one-mpg increase in the city when comparing the 2021 XC60 to the 2022 B5 model. With the B6 powertrain, the 2022 XC60 improves by one mpg in the city and combined compared to the 2021 model. The EPA site doesn't show a front-drive XC60 for next year, and the XC60 AWD PHEV is already referred to as the XC60 T8 AWD Recharge. It's possible horsepower ratings will change slightly for the mild-hybrid rigs next year, but not enough to change the driving experience. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

Watch Volvo's V8 Supercar drivers play with the Polestar S60 in the Arctic

The Volvo S60 Polestar may not seem like a natural fit for the V8 Supercars series that runs throughout Australia, New Zealand and Tasmania. After all, the all-wheel-drive production-spec car isn't even available with a V8. But the rear-wheel-drive racing version has acquitted itself well in the early races of the season, even scoring an overall win at a race in Melbourne. Currently at seventh place in the championship, the S60 the most successful car that isn't a Holden or Ford.
To celebrate its burgeoning success, Volvo sent its V8 Supercars drivers Robert Dahlgren and Scott McLaughlin to home base in Sweden to have some fun driving in the snow and to visit Polestar headquarters. The two of them do some big power slides on an icy lake and then taker a deeper look into the company's performance division. Scroll down to watch the video full of sliding Swedish sedans.