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Cadillac finds a few more horsepower for ATS-V

We've rarely found cause to complain about a car getting more power, and guess what? That's not going to change here. After initially announcing that the new ATS-V would come to market with a Corvette-matching 455 horsepower, Cadillac has come back with an SAE-certified 464 horsepower. That, as Automobile points out, puts the high-performance ATS in spitting distance of the base Mercedes-Benz C63 AMG and its 469 hp. Anyone else feeling bad for owners of the 425-hp BMW M3? While the ATS-V is getting a bit more grunt, somehow, we doubt Cadillac will adjust its previously published performance figures. Expect 60 miles per hour to arrive in 3.9 seconds, with a top speed of 185 mph. As of this writing, a lucky Autoblog staffer is lapping the ATS-V around Circuit of the Americas in Austin as part of the sedan's big launch. So while we can't fill you in on its real-world performance just yet, expect a big update soon. Related Video:

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

2017 Cadillac XT5 cuts weight, adds room over SRX [UPDATE]

UPDATE: This post has been updated with a full set of official photos. Impressions on the interior and exterior have also been added. The attention of Cadillac fans may be focused on the new CT6 sedan, but the most important new vehicle in the New York-based company's quiver might be the all-new XT5. Cadillac officially unveiled the SRX replacement today ahead of its full debut in Los Angeles next week. Short for Crossover Touring 5, the new XT5 drops 278 pounds over the old SRX, while offering an extra 3.2 inches of interior space. The XT5's face balances the best parts of the Escalade and CT6's fascias, with a strong egg-crate grille and prominent LED accent lights. It looks good scaled to a vehicle of this size. The taillights curve up and over the rear haunches, which feed into a strong shoulder line that runs towards the front of the car. It's a solid look, and one we're looking forward to seeing in person. The interior looks very, very nice, with warm leather and wood trimmings. The steering wheel, with its large, central wood accent, looks remarkably good. In fact, it might be one of our favor parts, if only because it's such a bold piece of design. We aren't crazy about the sheer abundance of buttons on the wheel, though. All four spokes are covered, and it just looks kind of cluttered. As is the trend nowadays, the center console features a floating bridge design with plenty of storage space underneath. Our early impression of the leather-wrapped dash is positive, although as is so often the case, we need to get a hands on before rendering a final judgment. There are no major surprises under the hood. Like the current SRX, the XT5 utilizes the same 3.6-liter V6 as the CTS and ATS sedans. Start/stop has been fitted, which should provide a boost in fuel economy although no mileage figures have been published yet. Cadillac will also offer a standard 2.0-liter turbocharged four-cylinder XT5, although for reasons that aren't clear, it's only for the Chinese market. This seems like a misstep in our eyes, considering the XT5 will challenge the likes of the BMW X3, Audi Q5, and Mercedes-Benz GLC – all of which offer four-cylinder turbos. With the V6, the XT5 delivers 310 horsepower and 270 pound-feet of torque. While there's more total horsepower than the Lexus, Audi, or BMW, the 3.6 still faces a torque deficiency versus the turbocharged X3 xDrive35i or supercharged Audi V6. The XT5 has a standard eight-speed automatic transmission.