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Cadillac CT6 hybrid likely to appear in Shanghai

Cadillac is poised to reveal a hybrid version of the CT6 sedan later this month at the Shanghai Motor Show. Rumors have swirled of the sedan's pending reveal, and General Motors product chief Mark Reuss reportedly confirmed its existence last fall during an investor conference. On Wednesday, Reuss again said that GM is working on the hybrid CT6, and when asked by Autoblog, he hinted at the pending debut. "We've really got to wait until we finish rounding out the portfolio," he said. "The Shanghai show is where you should look for all of it. So stay tuned." A Cadillac spokesman declined to comment, but confirmed "we will add variants." The brand has already announced two V6 engines and is looking to expand the line. Reuss also said GM has considered a V-Series model for the CT6, but it's focusing on launching the four-cylinder and V6-powered sedans first and promoting V-Series versions of the CTS and ATS that arrive this year. "The [CT6] architecture is certainly capable of doing it," he said. "The question is who's going to buy the CT6? What kind of person? And do we need a V-Series off of that is the question we haven't answered yet. It's certainly capable of doing it ... we've certainly thought about it." Details of the hybrid powertrain aren't known, but it could use plug-in technology. Chevrolet announced the 2016 Malibu will get a hybrid model that employs electric powertrain features from the new generation of the Volt. For the CT6, electric-vehicle technologies would likely be used to extend range and aid the performance of the conventional engine. Related Video:

Next Cadillac CTS-V confirmed for Detroit

As a car enthusiast, you should be excited for the 2015 Detroit Auto Show. Hell, we can barely contain ourselves – it's shaping up to be a great show. And this bit of news only heightens our expectations – Cadillac will be bringing its third-generation CTS-V to January's North American International Auto Show. That bit of high-performance news has been confirmed to Autoblog by Cadillac officials. In fact, we've received an official invitation to the brand's press conference, and while the latter is light on information, it does say, "it's time for the V-Series to elevate to the next level." Considering our last experience with the CTS-V, we're not sure what there is left to elevate, although we're hopeful that Caddy will come up with something. What that could be, of course, is very open to speculation. When the last CTS-V debuted in 2009, it arguably outgunned Germanic challengers like the 500-hp BMW M5 and 518-hp Mercedes-Benz E63 AMG for a lot less money, boasting a detuned version of the Chevrolet Corvette ZR1's 6.2-liter supercharged V8. Could that trend carry on, with the next CTS-V borrowing the supercharged, 650-hp mill from the new Corvette Z06? If escalation is the name of the game, the Z06 engine would seem to once again allow Caddy battle it out on firm, big-booted footing with BMW and Mercedes-Benz. Of course, all will become clear on the morning of Tuesday, January 13. Like we said, we can hardly wait. Related Video:

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