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Beast mode on the open road: New presidential limo close to delivery

Signs of the Beast have been seen on the open roads around Milford, Mich., home of GM's Proving Grounds. The Beast, in this case, being the nickname for the next-generation presidential limousine. We've seen this car previously in spy shots while parked or driven, going back to January 2016. This is our spy photographers' latest look at the vehicle, and the first on public roads. Which may be a sign that it is almost ready for delivery. It replaces the current Beast, which has been in use since 2009. And "car" isn't exactly the right word for this rig, as it's actually a unique vehicle with Cadillac styling cues custom-built atop a medium-duty truck frame. There may possibly be more than one Beast 2.0 delivered, because two limos are sent anywhere the president goes, to provide a backup or decoy. The grille has touches of the Cadillac Escala concept car, which is heavily influencing Cadillac's evolving future look. But it's what's inside that intrigues everyone. Here's what we know, or at least has long been rumored, about the current Beast and the new Beast 2.0. 1. It has its own airplane. It and its twin follow the president around the globe aboard a C-17 Globemaster cargo plane. 2. It's heavily armored, with 5-inch-thick glass, 8-inch-thick doors that weigh as much as a commercial aircraft door, and its components include titanium, ceramics, and a bombproof plate that covers the underside. As such, the old Beast was estimated to weigh between 14,000 and 20,000 pounds. You can therefore imagine how it got its name. 3. It's equipped like the Batmobile or the Green Hornet's Chrysler Imperial Crown, with run-flat tires and night-vision gear. It can fire gas canisters out the front bumper. 4. It has a diesel engine because of its weight and size (see the gallery below for a sense of scale). And of course, diesel is less flammable in a firefight. The old Beast supposedly gets 8 mpg. 5. Its Secret Service codename is Stagecoach. 6. There's a shotgun by the driver and God-knows-what in the trunk. 7. It supposedly has a stock of blood in the president's type, along with a defibrillator and other emergency gear. 8. And it's pretty nice inside, by all accounts. Since this is not Trump's own personal vehicle and may well serve his successor, let's assume the gold leaf has been kept to a minimum and it's done up in tasteful leather and wood. But then again, who really knows, outside of the Secret Service and a handful of GM engineers.

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 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: