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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 SL snapped getting major facelift

With the new Mercedes-AMG GT leading the charge, it'd be all too easy to forget about the SL. But Benz hasn't, as you can see from these latest spy shots. Spotted undergoing testing in Germany, this heavily disguised prototype foreshadows the arrival of a heavily revised two-seater convertible. It's hard to tell much from the other side of the body cladding and camouflage, but it appears to be hiding a new front end – complete with slimmer headlights, reprofiled front bumper and more upright grille – as well as a new hood, rear bumper, exhaust tips and tail lamps. Unlike the last time we saw the new SL out testing, we can now see inside as well. Although the steering wheel and center console remain hidden from view, we can anticipate a bigger touchscreen display and other updates. And apparently an onboard winter hat, as well. Now in its sixth generation, the Sport Leicht may not be as sporty or as light as the original, but while others have come and gone, the SL remains a mainstay of the Mercedes-Benz lineup. The current model was introduced in 2012, and this update should keep it fresh on the boulevards of Beverly Hills, the French Riviera and Abu Dhabi for several more years to come. Related Video:

Mercedes-Benz, Volkswagen, and Audi announce Takata recalls

Daimler, Volkswagen, and Audi will recall nearly 1.7 million total vehicles in the US to replace their Takata airbag inflators. The Japanese parts supplier and the National Highway Traffic Safety Administration announced in late January that several automakers would need to fix around five million more vehicles, and the various companies have been releasing the details since then. Daimler has a recall for 841,000 vehicles in the US, including 705,000 from Mercedes-Benz and 136,000 from the company's van division. Reuters reports the affected models consist of 2005-2014 examples of the SLK-Class, C-Class, E-Class, M-Class, GL-Class, R-Class, and SLS-Class. The vans comprise the 2007-2014 models of the Dodge, Freightliner, and Mercedes Sprinter. Autoblog reached out to Mercedes USA to confirm these details, and we're awaiting a reply. Daimler expects the repair campaign to cost 340 million euros ($382 million at current rates). The company will book the costs as part of its financial year 2015 results, and net profit for that year will fall to 8.7 billion euros ($9.8 billion). Volkswagen's recall covers 680,000 vehicles in the US to replace their driver side airbags. The affected models have Takata's SDI and PSDI-5 inflators, which could rupture in an crash, but the automaker isn't aware of any explosions for these parts in its products. This campaign includes: 2006-2010 Passat Sedan and Wagon (German Production) 2012-2014 Eos 2010-2014 Golf 2010-2014 Jetta SportWagen 2012-2014 Passat (U.S. Production) 2009-2014 CC There are also 170,000 Audi vehicles with the SDI and PSDI-5 inflators in the US, but there are no reports of the parts rupturing in the company's models. The affected products are: 2005-2013 A3 2006-2009 A4 Cabrio 2009-2012 Q5 2010-2011 A5 Cabrio VW and Audi are still working to identify the specific VINs for these vehicles. Afterwards, they will notify affected owners. Ford, Mazda, and Honda already announced details for their new round of Takata repairs. VW and Audi also recalled a small number of Tiguans and Q5s to replace their side airbag inflators from the Japanese company. NHTSA still expects BMW and Saab to detail expanded safety campaigns.