2011 Cadillac Escalade on 2040-cars

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Sunday Drive: Classic American nameplates and one exciting new German

Our look back at last week's biggest automotive stories focuses first on the Jeep Wagoneer, an unequivocal American classic. Not only did the Wagoneer play a pivotal role in kicking off America's current love affair with the sport utility vehicle, it legitimized the Jeep brand in the mind of consumers looking not just for something to ably take them off the beaten path, but to do so in comfort, with the entire family along for the ride. So it comes as little surprise that Jeep decided to take one vintage Wagoneer, modernize it with a 5.7-liter Hemi V8 engine, and put the thing on display as part of its annual Moab Easter Jeep Safari. We're in love. Our next two stories focus on Cadillac. First up is news that the striking Escala Concept is headed for production in 2021 to serve as the brand's flagship luxury sedan. The second story involves Caddy's current top rung, the CT6, which gets a new twin-turbo V8 engine as part of its V-Sport package. And finally, we round out this look at last week's headlines with the 2019 Mercedes-Benz C-Class Coupe and Cabriolet. We're mighty keen to try out Benz's new AMG-fettered turbocharged inline-six engine, and the C Coupe looks like a fine point of entry. As always stay tuned to Autoblog this week for all the latest automotive news. Jeep delivers basketful of concepts for the Moab Easter Jeep Safari Cadillac's striking Escala concept is reportedly headed for production Cadillac CT6 V-Sport wants to take prisoners with 550-hp 4.2L TT V8 2019 Mercedes-Benz C-Class Coupe and Cabriolet revealed ahead of New York

GM patent reveals new two-stage turbocharger

Modern turbochargers may be some of the best ever made, but performance is something that engineers are always trying to improve. According to GM Inside News, General Motors (GM) is hoping to alleviate some of the negative aspects of a two-stage turbocharger setup with a newly-patented design. The patent, that was filed on May 19, 2016, reveals a clever bypass system that allows the engine, a four-cylinder unit, to optimize both the low-pressure and high-pressure inlets for its respective functions. According to the filing, a conventional two-stage turbocharger setup is engineered to allow both turbines to operate simultaneously at low and mid engine speeds. At high engine speeds, only the low-pressure turbine works. The setup can't isolate either the low or high pressure side, which can impair low-end performance. GM's new two-stage turbocharger setup looks to eliminate this by linking the high-pressure turbo to the exhaust manifold through the high-pressure inlet duct. The low-pressure turbo is attached to the high-pressure turbo by a low-pressure inlet duct, which is linked to a connecting channel. A single actuator that is housed in the exhaust manifold creates a bypass that can opens the high-pressure inlet or close the connecting channel. Depending on what the engine load and speed is, the ECU guides the actuator—a single rotating spindle with discs corresponding to flanges on the high and low pressure sides—to isolate one of the two turbos. Isolating the turbos allow the respective inlets to be engineered for the best possible fluid dynamic performance. The setup should increase performance and decrease lag. There's no word on what car this setup will make an appearance on, but it will most likely be used in premium vehicles before trickling down to the rest of GM's vehicles. Related Video: News Source: GM Inside News, AutoGuide via GM Authority Cadillac Chevrolet GM Technology Sedan turbo patent engine turbocharging

Mercedes leads in US luxury car thefts

Mercedes-Benz makes some fine automobiles. The Silver Arrow'd cars are so good, apparently, that thieves can't help but try to steal them. The German brand is at the top of the charts for luxury car thefts in the US, according to the National Insurance Crime Bureau, with New York City leading the way. (And those New Yorkers complain about Detroit being bad!)
The C-Class was the most stolen model, with 485 ganked between 2009 and 2012 in NYC alone, while the E-Class and S-Class (which also boasted the worst recovery rate, at 59 percent) both finished in the top ten. Following the C-Class was the BMW 3 Series and Infiniti G. Not surprisingly, each of these were the most common models in their respective lineups. Los Angeles and Miami are also prime hotspots for luxury car thefts, according to the Detroit News report.
While getting your car stolen is pretty awful, there was one inspiring statistic compiled by the NICB - the average recovery rate across the board was 84 percent, with the Cadillac CTS getting recovered 91 percent of the time.