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Cadillac won't replace XTS after 2019

Cadillac wouldn't be Cadillac without a large sedan, but the definition of just which model fits that bill changed last week. Before the New York Auto Show, that role fell to the XTS. After the New York Auto Show, though, the focus shifted to the CT6. So what's to become of the XTS now that the CT6 has emerged? According to the latest intel, it'll live out the rest of its lifecycle until around 2019, but then drive off to its own funeral like so many limousines and hearses that were built off its platform. This was learned based on comments made by Cadillac chief Johan de Nysschen at the closed-door unveiling of the CT6 in Manhattan: "Ultimately, a car like XTS when it reaches the end of its lifecycle, will not be replaced." That'll be bad news for the livery business that – in the post-Town Car era – has come to rely on the XTS as the basis for its stretch jobs. "We will not have a car that will lend itself to these kind of modifications and we will probably withdraw from those markets," de Nysschen told GM Inside News. That's not all the new Cadillac boss had to say, though: he also indicated that the replacements for the ATS and CTS will be positioned differently from the current models: "As we move into the future refining our sedan portfolio, there will be no direct successor to the CTS. There will be no direct successor to the ATS. There is no point to renaming those cars because in the future those cars will disappear." Based on Johan's comments and those we've heard until now, we'd expect the replacement for the ATS to move down a size to take on the likes of the Audi A3 and Mercedes CLA, and the CTS' successor to move down half a size class as well to give the new CT6 a bit more breathing room, and possibly an even larger flagship sedan to be positioned above them all. Related Video:

Cadillac cancels its car subscription program after just two years

Cadillac is cancelling its Book by Cadillac subscription service, according to a report from the Wall Street Journal and confirmed to Autoblog by a Cadillac spokesperson. The $1,800 a month service has been in operation since early last year. The Cadillac spokesperson told us this: "Following nearly two years of service, Cadillac will temporarily pause the Book by Cadillac program effective December 1, 2018." This moves comes not too long after the decision to leave its New York City headquarters and return to Michigan. While Cadillac claims the disruption of service will be temporary, there's no defined plan to start the program back up again. The reason for the cancellation? The service ended up being more costly than Cadillac expected it to be. Owners will have 30 days from the time they're notified to turn their vehicles in. If this subscription service was your only transportation, then you better start looking for something else. The service was available in New York City, Dallas and Los Angeles. Subscribers could choose between five different Cadillacs: ATS-V, CTS-V, CT6, XT5 and Escalade. You'd be allowed up to 2,000 miles per month and 18 vehicle swaps per year through the concierge service. Cadillac would bring the car of your choice to you and take the old car away at your whimsy. The price included registration, taxes, insurance and maintenance costs. No long term commitment was necessary to sign up. This makes Cadillac one of the first manufacturers to end a nascent subscription service. If it starts back up again, expect it to look a bit different from the current program. Cadillac says it's using this experience to make strategy adjustments in the future. Whether that means a much more costly program for users, or no subscription program at all, we don't know. Plenty of other manufacturers still offer limited subscription programs in select cities. We highlighted some of the biggest ones in our vehicle subscription service guide here. It'll just be a waiting game to figure out if these modes of ownership take off going forward. For more information on Vehicle Subscription Services, check out the Complete Guide. Related video: Cadillac Car Buying subscription service book by cadillac

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