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2020 Chevy Tahoe High Country spied along with next-gen Escalade

Have no fear, the big grilles are here. Or, at least we think they're coming. One of our spy shooters caught the next-gen Chevrolet Tahoe and Cadillac Escalade out testing with more of their fronts ends exposed than before. Starting with the Tahoe, we can see what amounts to a blinding amount of chrome under the wrappings. We're guessing this would be a new Tahoe High Country trim level, mirroring the range-topping trim level currently offered on the Silverado and Traverse. The Tahoe's current range topper is the Premier. Although the rather ornate details in the grille are not found on the current High Country trims, they also seem like something that would be available on the priciest Tahoe available. The same could be said of the LED lighting details visible under the camo as the Silverado High Country, shown below, does indeed have unique LED elements. The next-generation Cadillac Escalade only shows up in two of the photos. As we can't see shiny chrome reflecting through the camo, we're guessing the Escalade will adopt a blacked out grille similar those found on the XT6 and other Cadillacs. We can also see horizontal lighting elements similar to those on other recent Cadillacs. As this is an Escalade, however, we'd imagine everything will be supersized. GM will be ushering these trucks out soon, with the independent rear suspension being the big story. Besides the improved ride and handling, it should result in substantially improved cargo space and third-row legroom. Doing so would at least close the gap with the biggest Lincoln and Ford SUVs.

GM exploring ways to raise half-ton Duramax diesel tow rating

Lots of truck owners cheered when GM announced fuel economy numbers for the 2020 Chevrolet Silverado with the 3.0-liter Duramax diesel inline-six. Even after Ram let loose its EPA mileage ratings for the 2020 Ram 1500 EcoDiesel, the Chevy oil-burner still took the trophy. The victory was years in the making, GM engineers spending an entire four-year development cycle refining the LM2 Duramax to increase mileage. The tradeoff, as well all know by now, is towing; the Duramax in half-ton duty pulls a maximum 9,300 pounds in the Silverado. Rivals across town can do more, the Ford F-150 PowerStroke rated at 11,500, the Ram 1500 EcoDiesel game to pull 12,560. GM engineer John Barta told Muscle Cars & Trucks that more hauling chops could be on the way, explaining, "We’re actually looking at upgrading some of the materials around (the engine bay) to see if we can maybe raise our tow rating." Engine bay materials are at issue due to thermal complexities underhood. John Barta, GM's assistant chief engineer of diesel engine controls, said the Duramax's inline-six configuration allowed engineers to get emissions hardware like the combined selective catalytic reduction, diesel oxidation catalysts, and diesel particulate filter unit closer to the engine, where it heats up quicker, getting emissions down quicker. But that filter puts another heat source in those confines, enforcing a cap on the tow rating to keep the engine and other systems from overheating. "If you look under the hood," he said, "youÂ’ll see a significant amount of silver ‘moon tapeÂ’ around to make sure things arenÂ’t getting overheatedÂ… if we were to go up in higher towing, which we can, we start impacting the possibility of deteriorating some of the components.” There isn't much space for more grille, so swapping for a better grade of "moon tape" or a different kind of material could reduce engine bay heat, extracting a higher tow rating in the process.  It's important to note a point Barta's been making for months about the Duramax figures, though. "Even though itÂ’s nice to brag about big numbers, in reality, light duty customers are not towing that large with their trucks," and, "We do know that (95 percent) of our light duty customers donÂ’t tow over 9,000 pounds." On our First Drive of the 2020 Silverado diesel we called out the tow rating, but emphasized that the Chevy and GMC have more important challenges to overcome.

Genovation Cars readies all-electric Corvette prototype

Chevy runs the full spectrum from some of the most environmentally friendly cars to the least. At one end are EVs like the Spark and Volt. At the other, performance models like the Camaro and Corvette. But one American company wants to bridge that divide. That company is Rockville, MD-based Genovation Cars, which reports that it is almost done building its prototype for an all-electric Corvette. Dubbed the Genovation Extreme Electric (or GXE for short), the prototype is based on a previous-generation 2006 Chevy Corvette Z06, but ditches its enormous 7.0-liter V8 for an array of inverters, batteries, and electric motors said to be good for over 700 horsepower and 600 pound-feet of torque. That promises to deliver a 0-60 time of about 3.0 seconds and a top speed in excess of 200 miles per hour. Those are supercar benchmarks for performance if we've ever seen them, and ought to leave even the top-spec Tesla Model S P85D in... well, not a cloud of smoke, but whatever the electric equivalent is, in a non-polluting cloud of that. The GXE is also supposed to be able to travel for 150 miles on a single charge, and handle well while it's at it with 50/50 front-rear weight distribution and a low center of gravity. Sorta like the Power Wheels 'Vette pictured above, then, but bigger and faster. Look for the GXE to debut at the Electric Vehicle Technology Expo this coming September in Michigan, after which Genovation says it will put the GXE to the test on the track to back up its performance claims. Genovation Cars Nearing Completion of High-Performance All-Electric Corvette, the GXE ROCKVILLE, Md.--(BUSINESS WIRE)--Genovation Cars is nearing the completion of a prototype high-performance all-electric Corvette called the Genovation Extreme Electric or GXE. Assembly of the GXE will be completed by the end of July, followed by a three-week testing phase. The GXE is based on a 2006 Z06 Corvette. Several contributors to the GXE effort have helped design and build record-breaking electric vehicles. They include an MIT electrical engineer and a mechanical engineer from Cosworth. "We are using state of the art inverters, batteries and electric motors that will produce in excess of 700-hp and 600 lb-ft of torque," said Genovation CEO Andrew Saul. "We expect the car to achieve 0-60 mph in around three seconds and have a top speed of over 200 mph.