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2014 Mercedes-Benz B-Class ED has 87-mile range, 84 MPGe

Well, that extra weight had to be felt somewhere. With Mercedes-Benz getting ready to start US sales of its B-Class Electric drive this summer, the big question was how well its range would stack up against other electric vehicles sold in the States. Turns out, the Benz is a bit of a juice hog. Let's say up front that the 87-mile single-charge range of the Mercedes-Benz actually stacks up nicely against its competition, since that distance puts the new model right in line with the Nissan Leaf and BMW i3 (we'll ignore the Tesla Model S for a second, here). You can find the numbers at the US Department of Energy's FuelEconomy website. As far as miles per gallon equivalent ratings, though, the Benz's steel frame makes it come up short, as it's about 1,300 pounds heavier than the carbon-fiber-body i3 and about 600 pounds heavier than the Leaf. The B-Class EV has a bigger battery than the i3 or the Leaf (36 kWh compared to 22 kWh for the i3 and 24 kWh for the Leaf) and that's one reason the car gets an 84 MPGe rating, which is about 26 percent less than the Leaf's and 32 percent less than the i3's. But at least the local utility companies will be happy. Mercedes-Benz priced the 177-horsepower B-Class ED in April at $41,450, or $100 more than the i3. Check out Autoblog's First Drive impressions here.

Red Bull may seek engines from Ferrari after Mercedes snub

Red Bull and Renault's fractured relationship is pushing the Austrian F1 team to find a new engine provider. But after a trip across the German border to chat with Mercedes-Benz proved fruitless, the team is apparently set to head across its home country's southern border, and into Italy. Yep, Red Bull Ferrari could be a thing next season. According to RBR boss Christian Horner, the company is just doing "necessary due diligence" in contacting other engine suppliers, although he's willfully admitted to Germany's Bild newspaper that the "idea of Mercedes is finished," BBC Sport reports. It wasn't so much that Mercedes and Red Bull couldn't come to financial agreement – Red Bull owner Dietrich Mateschitz views throwing money into F1 in much the same way you or I toss pennies into the mall fountain – but rather that the Germans had no interest in supplying the best engines on the grid to the factory team's perennial rival. BBC Sport seems to think that fact, along with what the outlet calls Red Bull's "antagonistic" relationship with engine suppliers, killed the Mercedes deal. Honda and RBR aren't likely to happen either, thanks to McLaren (not that we think Red Bull would approach the Japanese, which have struggled mightily all season long). By process of elimination, that just leaves Ferrari. Scuderia Ferrari Team Principal Maurizio Arrivabene confirmed that his team can accommodate Red Bull's engine needs, and that he wasn't concerned with the idea of a Ferrari engine in an Adrian Newey-designed body. "In theory they have big names, with Newey as chief designer and it is easy to think that if you give them the engine they will build a scary chassis, which means they will be really competitive," Arrivabene told BBC Sport. "Concerning my team, my engineers and aerodynamicists know their own jobs. For that reason I don't have a problem, and competition is nice when you have a stronger competitor." "This doesn't mean tomorrow morning we will give our engines to Red Bull or Toro Rosso," Arrivabene added. And it's that statement we'd suggest remembering. There are, after all, still seven races left in the 2015 season, which is quite a lot of time for new and different developments within the sport's notoriously gruesome political process. In other words, don't count on an announcement from any team or manufacturer for at least a few more races. Related Video:

2019 Autoblog Technology of the Year finalists revealed

Every fall, we line up a range of new models with the latest and most compelling automotive technology from the past year. We test everything from semi-autonomous systems like Tesla's Autopilot to trick suspension setups like the Multimatic spool-valve shocks on the Chevy Colorado ZR2. We spend months paring down the list to a small group of contenders. After testing, dinner and healthy debate, we tally up the votes and name our winner. For Autoblog's 2019 Technology of the Year Award, our three finalists are the Cadillac CT6 with Super Cruise, the Infiniti QX50 with Variable Compression Turbo and the Mercedes-AMG E 53 with EQ Boost. Super Cruise is an advanced SAE Level 2 semi-autonomous system, though Cadillac (unlike some of its rivals) is reluctant to push that point. Cadillac would like you to think of this as an advanced driver assistance feature rather than a semi-autonomous system. Super Cruise allows completely hands-free highway driving. Thanks to a driver-facing camera, the system forces the driver to keep his or her eyes on the road even if hands are off the wheel. Although the CT6 is being discontinued, look for Super Cruise to make its way to other Cadillacs soon. VC Turbo is a little more complicated. Basically, Infiniti's 2.0-liter turbocharged inline-four can vary the compression ratio on the fly. In general, turbocharged engines are more efficient than naturally-aspirated engines when on boost, but can perform worse at low revs. VC Turbo allows for a best-of-both-worlds situation, increasing the compression at low revs and backing it off once the turbo spools up. The best part is that it does so seamlessly, with only a dash readout letting you know what's going on under the hood. Our third finalist is the EQ Boost 48-volt system in the Mercedes-AMG E 53. Like VC Turbo, EQ Boost does a lot just beneath the surface. Mercedes has developed a new turbocharged 3.0-liter inline-six and paired it with a small electric motor. While the car can't run on electricity alone, the motor helps improve both efficiency and performance, smoothing shifts and filling in low-end torque before the turbos spool up. Think torque fill, similar to a McLaren P1. Who can complain about better fuel economy and more torque? Look for the 48-volt system to make its way into most of the Mercedes-Benz lineup. The winner will be revealed next week on Autoblog, and we'll present the award Jan. 15 at the Detroit Auto Show. Related Video: