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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:

Mercedes-Benz engines with 48-volt systems coming in 2017

As part of a big green push announced yesterday, Mercedes-Benz is jumping into the world of 48-volt power. The company will launch a new family of efficient gasoline engines next year and will begin rolling out 48-volt systems with it, likely in its more expensive cars first. Mercedes will use the 48-volt systems to power mild-hybrid functions like energy recuperation (commonly called brake regeneration), engine stop-start, electric boost, and even moving a car from a stop on electric power alone. These features will be enabled through either an integrated starter-generator (Mercedes abbreviates it ISG) or a belt-driven generator (RSG). (RSG is from the German word for belt-driven generator, Riemenstartergeneratoren. That's your language lesson for the day.) Mercedes didn't offer many other details on the new family of engines. There are 48-volt systems already in production; Audi's three-compressor SQ7 engine uses an electric supercharger run by a 48-volt system, and there's a new SQ5 diesel on the horizon that will use a similar setup with the medium-voltage system. Electric superchargers require a lot of juice, which can be fed by either a supercapacitor or batteries in a 48-volt system. Why 48-volt Matters: Current hybrid and battery-electric vehicles make use of very high voltages in their batteries, motors, and the wiring that connects them, usually around 200 to 600 volts. The high voltage gives them enough power to move a big vehicle, but it also creates safety issues. The way to mitigate those safety issues is with added equipment, and that increases both cost and weight. You can see where this is going. By switching to a 48-volt system, the high-voltage issues go away and the electrical architecture benefits from four times the voltage of a normal vehicle system and uses the same current, providing four times the power. The electrical architecture will cost more than a 12-volt system but less than the complex and more dangerous systems in current electrified vehicles. The added cost makes sense now because automakers are running out of ways to wisely spend money for efficiency gains. Cars can retain a cheaper 12-volt battery for lower-power accessories and run the high-draw systems on the 48-volt circuit. The industry is moving toward 48-volt power, with the SAE working on a standard for the systems and Delphi claiming a 10-percent increase in fuel economy for cars that make the switch.

Hollywood stars drink hydrogen B-Class F-Cell emission water in Death Valley [UPDATE]

A plug-in electric vehicle can be used to power a house during a winter storm, but if you're more worried about the heat of, say, Death Valley, then maybe you'll want a Mercedes-Benz B-Class F-Cell along. That's the message of a new video from Daimler and starring Diane Kruger (Inglourious Basterds) and Joshua Jackson (Fringe) that promotes the company's hydrogen-powered car. The gist? You can drink the tailpipe emissions. The two Hollywood stars drove in Death Vally without any water in their F-Cell but had a special tank hooked up to the tailpipe to collect the H2O drips as they drove in 100+ degree temperatures. There's a reason these two actors were chosen, since they've been driving an F-Cell in their daily lives for two years, according to the Diamler press release. The text is, shall we say, a bit hyperbolic - "Their lives rely on the emissions of the B-Class F-CELL" it says, totally ignoring the film crew that is obviously along for the ride and more than likely had a few bottles with them. Also, when the California Fuel Cell Partnership promoted the same idea a few years ago, it clarified that, "A fuel cell doesn't produce enough water to fill your glass. ... If fact, fuel cells produce about the same amount of water as gasoline vehicle – about 1/3 cup for a full day of driving." Thus, this whole thing is a Hollywood stunt, but it's a visually effective one. See for yourself in the mini-movie below. UPDATE: Daimler has told AutoblogGreen that there was no "extra Hollywood magic" needed for the water collected in the video. Instead, Madeleine Herdlitschka, who works at global communications for Mercedes-Benz Cars, said, "Considering the technical characteristics, the Mercedes-Benz B-Class F-CELL emits about 9 kg of water vapor per kg of hydrogen while driving. The vehicle has a hydrogen capacity of about 3.7 kg, what is sufficient for a max. of about 400 km of range. A tailor-made construction, designed by the production company Markenfilm Crossing in cooperation with our fuel cell experts, made it possible to collect the water in a tank - previously cooling the vapor with a specially designed pipe system." This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.