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2020 Cadillac CT4 Review & Buying Guide | Cadillac recommits to the small sedan

The 2020 Cadillac CT4 is a brand-new entry into the baby luxury sedan space, replacing the ATS. With an excellent rear-wheel-drive chassis and a performance-oriented “V” trim (to be topped by a yet-wilder “Blackwing” model), the CT4 is aimed at the enthusiast end of the segment. Cadillac fields the lone American entry in this class, meaning the CT4Â’s main competitors — the Audi A3, BMW 2 Series Gran Coupe and the Mercedes-Benz A- and CLA-Classes — are all European. However, since it's a bit bigger than those and features a rear-wheel-drive platform (all-wheel drive is available), it's hardly an apples-to-apples situation. The Genesis G70 is perhaps a closer comparable. In any event, the CT4 is a compelling, American alternative that delivers excellent comfort, interior quality and driving dynamics at a price that strongly challenges the various competitors from Europe. What's new for 2020? The Cadillac CT4 is new for 2020, alongside the bigger CT5. You can check out our first drive of the hot CT4-V model for more on CadillacÂ’s new sedan strategy. 2020 Cadillac CT4 View 4 Photos What's the CT4's interior and in-car technology like? The Cadillac CT4 packs the sort of high-quality materials and convenience features one expects from an entry-level luxury model. The seats are comfortable and supportive, and in higher-end models, the front buckets are offered with heat, ventilation and massage features. The CT4 also boasts what GM calls a “sound-optimized” interior coupled with active noise cancellation and amplification to mitigate unpleasant frequencies and enhance desirable ones. In all, we find the CT4Â’s interior much more compelling than that found in other recent Cadillac products such as the new XT4 crossover. The infotainment system is controlled by an 8-inch touchscreen with an optional rotary-control interface. The base setup includes Android Auto, Apple CarPlay and Amazon Alexa integration and offers USB Type-A and Type-C connectivity and charging. Upgrades include navigation and multiple Bose audio packages, all of which bring with them wireless device charging. How big is the CT4? Like many of CadillacÂ’s previous sport sedans, the CT4 is a bit of an oddball size-wise for the segment it targets, stretching more than a foot longer than the Audi A3 and nearly 9 inches longer than the BMW 2 Series Gran Coupe. However, this doesn't translate into a comparable interior space advantage because of the CT4 rear-wheel-drive platform.

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 Escalade reportedly getting 200-hp bump from supercharger

Cadillac is preparing to supercharge the Escalade, according to a recent report. The body-on-frame General Motors SUVs that it shares its basic underpinnings with are allegedly in line to receive a big increase in power, too. Released for the 2021 model year, the fifth-generation Escalade eschewed downsizing and launched with a 6.2-liter V8 as its standard engine. It develops 420 horsepower and 460 pound-feet of torque when it's naturally aspirated, and Motor Trend learned from an anonymous source that the optional supercharger will increase the first figure to anywhere between 600 and 625. The eight's torque output will undoubtedly go up, too. The supercharged Escalade won't outgun the sold-out Dodge Durango SRT Hellcat, which gets 710 horses, but it will pack a serious punch. It doesn't sound like the V8 will require significant modifications to handle the extra power because the supercharger kit will likely be installed by dealers, not on the assembly line. This strongly suggests that it's more of a bolt-on job than one that requires taking the engine out and apart to install stronger connecting rods and forged pistons, for example. ECU tweaks will be part of the package, too, and the fuel delivery system may require some upgrades. Interestingly, Motor Trend learned from Texas-based Hennessey that the SUV's ECU is locked to tuners, which adds credibility to the report. Motorists who want more power will need to go through official sales channels, then. Bigger brakes and a firmer suspension won't be part of the package — at least not yet. The same source outlined a true high-performance evolution of the body-on-frame behemoth that will be quicker and tighter to drive. Oddly, it's not being developed by the engineers in charge of Cadillac's V-branded models, according to the report. If the report is accurate, we'll learn more about the supercharged Cadillac Escalade in the coming months, and it might go on sale in time for the 2022 model year. Expect the supercharger to come with a four-digit price tag. Chevrolet's Tahoe/Suburban and GMC's Yukon/Yukon XL will reportedly be available with a supercharger, too.