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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:

2013 Mercedes-Benz GLK250 Bluetec gets 33 mpg, priced from $38,950*

It's been more than a year since we first saw the 2013 Mercedes-Benz GLK250 Bluetec unveiled at the 2012 New York Auto Show, but it looks like the compact diesel crossover is finally starting to roll into dealerships. Those wanting to buy a diesel GLK will only have to pony up an extra $1,500 over a base, gas-powered GLK350, as the GLK250's starting price is listed at $38,590 (*not including $905 destination charge).
The turbocharged 2.1-liter four-cylinder diesel produces 200 horsepower and 369 pound-feet of torque, and Mercedes-Benz has also provided some fuel economy numbers for this model, with claimed EPA estimates of 24 miles per gallon city and 33 mpg highway. There is no listing for the GLK250 on the EPA's website yet, but the figures represent significant increase over the GLK350's lackluster 19 mpg city and 25 mpg highway figures, which are for the rear-wheel drive model. The GLK250 comes standard with the 4Matic all-wheel-drive system - a $2,000 option on GLK350 - meaning that if you want an all-wheel-drive version of the 2013 GLK, it's actually cheaper to opt for the diesel model. Head over to the Mercedes-Benz site for the full 2013 GLK-Class configurator.

Ultra-rare Maybach 57S Coupe ordered new by Moammar Gadhafi is for sale

One of Maybach's rarest 21st-century cars is for sale in Holland, and it owes its existence to one of the most controversial African leaders in recent history. Dutch exotic car dealer Auto Leitner listed a Xenatec-built Maybach 57S Cruisero coupe ordered and customized by Colonel Moammar Gadhafi but built after his death. Short-lived German coachbuilder Xenatec chose to start with the short-wheelbase 57 rather than with the longer and more stately 62. It didn't alter the sedan's length or wheelbase; instead, it created the Cruisero by extending the front doors, removing the rear doors, and adding more rake to the roof pillars. Several other minor visual tweaks set the coupe apart from the sedan, and the interior was given a more superficial makeover. Xenatec made no mechanical modifications, so power comes from an AMG-built 6.0-liter V12 twin-turbocharged to 604 horsepower and 738 pound-feet of torque. It spins the rear wheels via a five-speed automatic transmission. Although the coupe weighs 6,000 pounds, it takes five seconds to reach 60 miles per hour from a stop. The 57S Coupe was not a hefeweizen-fueled hack job haphazardly welded together in a shed. It was authorized by Daimler, and it was engineered to the same standards as the regular-production car. Executives were confident that they could sell 100 units to politicians, entrepreneurs, oligarchs, and other wealthy people around the world, but Xenatec filed for bankruptcy and closed after making only eight when one its main investors, a Saudi Arabia-based company named Auto Kingdom, abruptly stopped funneling money into the project. Gadhafi configured Auto Leitner's 57S Coupe, which was the fourth one built, and he should have taken delivery of it in 2012, but the Libyan Civil War that erupted in 2011 and ultimately led to his death on October 20 of that year derailed those plans. It was instead sold to another buyer whose identity is unknown. What's certain is that the person who ended up with Gadhafi's Maybach rarely drove it: its odometer shows about 1,429 miles. Highly optioned, this 57S is equipped with 20-inch wheels, soft-close doors, heated and massaging individual rear seats separated by a fridge, rear tray tables, front and rear air conditioning systems, a rear-seat entertainment system, and, for good measure a fire extinguisher.