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2021 Cadillac Escalade First Drive | Opulence at a cost

The Cadillac Escalade is one of the most recognizable cars in America, both on the road and in the minds of consumers. It is equal parts profit machine and pop culture icon, and it sits atop GM’s heavy-hitting hierarchy of body-on-frame SUVs. Sure, Cadillac may hold most of the cards in the luxury SUV marketing game, but itÂ’s not the only player. For starters, the Lincoln Navigator is quite good, and it takes a very similar approach to truck-based luxury. Both are flashy, cushy and high-tech, and their tuning acknowledges that driving dynamics will never be the strong suit of vehicles this large – though ride comfort certainly can be. To make matters worse, the Europeans are getting serious about their three-row SUV game, and while they may not offer the same body-on-frame capability you get from the Americans, they more than make up for it with brand prestige and state-of-the-art engineering. With such solid competition, Cadillac was not in a position to just phone in the EscaladeÂ’s redesign. The highlight of that effort is a new platform, shared with the new Chevrolet Tahoe and GMC Yukon, that finally features an independent rear suspension. There's also the gorgeous and tech-rich interior featuring a 38-inch curved OLED dash screen, a new diesel engine option and – stop us if youÂ’ve heard this one before – Super Cruise. While the Escalade does share its fundamentals with the Tahoe and Yukon, the Cadillac-branded variant of GMÂ’s big truck platform always gets special treatment. Only the very base model is available without a leather interior, for example, and the aforementioned in-cabin tech is exclusive to the Escalade. YouÂ’re also limited to just two engine options: the standard 420-horsepower V8 that's the range-topping option on GM's other SUVs, and the new 3.0-liter Duramax turbodiesel inline-six that's good for 277 hp and a V8-matching 460 pound-feet of torque. Both are paired with GMÂ’s 10-speed automatic transmission, and thereÂ’s no price difference, regardless of trim.   Like CadillacÂ’s other offerings, the 2021 Escalade has a split trim hierarchy. Above the base model, you can choose one of two paths: Premium or Sport. The Premium Luxury and Premium Luxury Platinum are your more traditional, flashier options, with lots of chrome and a rich, warm interior. The Sport and Sport Platinum are for those who prefer a more modern, subtle aesthetic, with blackout exterior trim and more subdued interior finishes.

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

2020 Cadillac CT6-V First Drive | A new kind of V

One of the weird tidbits of car news in the past year was the change in naming for the 2020 Cadillac CT6-V. When it was first revealed, it was called V-Sport, the term previously used for Cadillacs with more moderate performance upgrades than the full-blown V cars that possessed massive power outputs and serious track-going capabilities. But then, before the car in question went on sale, Cadillac changed the name to match the equally moderately sporty CT4-V and CT5-V that officially downgraded the V name. So what should we make of this CT6-V, then? Is it a hardcore performance machine like the old V cars? Or is it what we’re expecting of the new V cars: a lightly upgraded version of the base car that isnÂ’t particularly distinguished? As it turns out, the CT6-V sits between these two extremes to create a car thatÂ’s involving and exciting for the driver without compromising the CT6Â’s refinement and luxury. Mechanically, the CT6-V is ultimately closer to its full-bore V predecessors. The highlight is the “Blackwing” twin-turbocharged 4.2-liter V8 that makes 550 horsepower and 640 pound-feet of torque. Besides giving the engine prodigious output, Cadillac borrowed some pages from the AMG handbook: the turbocharger is nestled in between the cylinder heads, just like the current 4.0-liter AMG V8, and each engine is hand-built start to finish by one of six engine builders. The builderÂ’s name is even featured in the engine bay. TheyÂ’re special details that fit the idea of the old V cars, but the fact that a version of the same engine is in the Platinum CT6 does make its inclusion in the CT6-V seem less special, even if its output is notably less at 500 horsepower and 574 pound-feet of torque. Setting aside the details, the engine performs well in the real world. ItÂ’s astonishingly smooth, exactly what you want from a fast flagship. It also emits a unique exhaust note thatÂ’s both raspy and growly. You wonÂ’t mistake it for a pushrod powerplant. The power and torque provide a prominent push at all points in the rev band after a brief moment for the turbos to spool up. ItÂ’s just a shame there isnÂ’t much of a rev band, as the engine redlines at 6,000 rpm, which is easy to hit thanks to the engineÂ’s creamy character. ItÂ’s so low one wonders why Cadillac bothered developing a double-overhead-cam engine at all. The V8 is coupled to a 10-speed automatic transmission and all-wheel drive. The 10-speed is perfectly fine when cruising around town.