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Next-gen GM SUVs caught wearing new boxy bodies [w/video]

We recently drove the brand-new 2014 Chevrolet Silverado and found it to be vastly improved compared to the outgoing model. And now that The General's pickup trucks have been squared away, it's time to focus our attention onto their passenger-friendly companions, the Chevrolet Tahoe and GMC Yukon (above).
Our spy photographers have passed along a huge smattering of photos (and a video), showing the new SUVs out testing. Both the short- and long-wheelbase models were spied, and while the overall shape of the vehicles hasn't changed all that much, we expect the updates to be substantial. In addition to new powertrain options, like GM's new small-block V8, we expect the interiors of both SUVs to get massive makeovers, providing better materials throughout their cabins and quieter, more refined environments. We even hear that some trick new suspension developments may be in store for upper-end models.
Visually, these spy shots allow us to see a couple of new details on the SUVs' front and rear fascias, including LED running lamps on the Yukon and some interesting LED taillamp treatments. Of course, the obvious third party missing from this set of photos is the Cadillac Escalade, but as we reported earlier, GM is working to further differentiate the 'Slade from the rest of the fullsize SUV lineup, and is working to make the new model "much less ostentatious."

Best Convertibles for 2022

The past decade has not been kind to the drop-top enthusiast. No matter which dealer you walk into, convertible models have been biting the dust left and right. Nissan Z? Audi TT? Buick Cascada? Volkswagen Eos? All gone. Remember the humble Chrysler Sebring/200? Well, you do now. Fortunately, though, the news isn't all bad. There are still plenty of options out there for those who absolutely must have a convertible. Whether you need something to haul behind your retirement cruiser, a performance car that can go toe-to-toe with the best in the world or just something that allows you to sling the roof back after a long day of on-location business meetings before catching the flight back to your everyday hustle and bustle, there's at least one cabriolet out there to suit your needs. Here are our picks and starting prices for the top convertibles in several categories for 2022.  For the frugal open-top lover: 2022 Mini Convertible ($34,650) Let's face it; gas ain't cheap. But open-top motoring doesn't need to be a wallet killer. The Mini is cheap (at least by 2022 standards) and an absolute joy to drive, so there's really no downside here ... except for the roof. Get it?    For the hardtop lover: 2022 Mazda MX-5 RF ($37,260) / 2022 Chevrolet Corvette Convertible ($69,695) The number of hardtop convertibles has seriously dwindled due to weight concerns and the fact that fabric roofs have gotten so quiet, but there are still some options for those who prefer a more coupe-like look with the roof up. Our picks here are the delightfully Targa-like MX-5 Miata RF and literally any Corvette Stingray — even the hardtop has a removable roof!    For long road trips: 2022 Ford Mustang Convertible ($34,100) The first image that comes to mind for many who are told to visualize an American convertible is the classic Ford Mustang. It's not the only drop-top pony car out there, but thanks to the Camaro's tiny trunk, it's much harder to see the USA in a Chevrolet when a drop-top enters the equation. The Mustang has much more cargo space and a much larger opening, which is likely the difference between keeping your bags under lock and key or leaving them exposed in the back seat.    For towing behind an RV: 2022 Jeep Wrangler ($31,590) While many small runabouts make sense for towing behind a motor home (or nestled up inside a fancier one), the Wrangler has a serious advantage when it comes to RVing: it can easily be flat-towed.

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