2014 Cadillac Ats 2.0l Turbo on 2040-cars

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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

Cadillac ATS Coupe spy photos show more sedate two-door

Remember when the Cadillac CTS Coupe debuted, and we were all like, "Oh hello there?" Well, don't expect the same thing to happen when the new ATS Coupe is unveiled - these brand new (overexposed) spy shots show a two-door that's decidedly more sedate than the angular yet curvaceous and all-around good-looking CTS Coupe. This isn't to say that the smaller Caddy Coupe won't be attractive - the four-door version is plenty pretty, to be sure - it just likely won't have that extra somethin'-somethin' to truly set it apart from the sedan.
Fine, then. We don't doubt that the two-door ATS will be just as enjoyable to drive as its sedan sibling, with a lot of the mechanical stuff likely carrying over unchanged. That includes the powertrain options, meaning buyers will be able to choose from the naturally aspirated 2.5-liter inline-four, turbocharged 2.0-liter four, or larger free-breathing 3.6-liter V6.
Look for the 2014 ATS Coupe to enter production in January of next year, meaning a reveal later this year (LA Auto Show, perhaps?) would be in order.

Ghostbusters director tweets first photos of new Ecto-1

Ghostbusters is heading back to theaters next year with a new look. Rather than bringing back the original's aging comedic actors, four actresses are taking over the starring roles, including Melissa McCarthy, Kristen Wiig, Kate McKinnon, and Leslie Jones. Although, one of the movie's major highlights is missing from that list – the Ecto-1. Originally based on a 1959 Cadillac ambulance, we're now getting the first glimpses of the decked-out, ghost-hunting wagon from the new version thanks to director Paul Feig on Twitter. Purists might like that the Ghostbusters are sticking with a Caddy, but the producers are going for a slightly newer, more macabre approach, as well. Rather than an ambulance conversion, the latest one starts as a hearse. Feig also has his Twitter profile picture of a ghost taking over as the hood ornament, and he even tweeted a shot of the rear. @szewcik_james Okay. pic.twitter.com/sHkx1Soj6p — Paul Feig (@paulfeig) July 8, 2015 Being the Internet, Feig is being deluged both with hyperbolic vitriol for changing things, and praise for the switch. He has politely tweeted about the situation. Not blocking or deleting. I hear you all and appreciate all your input, good or bad. Thanks. https://t.co/pxZsWGeNyL — Paul Feig (@paulfeig) July 8, 2015 Keep in mind this Caddy hearse is about as old today as the original Ecto-1 from Ghostbusters' release in 1984. Having the ladies driving a '50s Caddy might stretch the imagination too far even in a movie about fighting the undead. This approach seems like a perfect compromise between old and new.