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GM resumes production of its 3.0-liter turbodiesel straight-six

General Motors temporarily stopped taking orders for trucks and SUVs equipped with the 3.0-liter Duramax turbodiesel six-cylinder engine in August 2021 due to a supplier shortage. Reports claimed the pause would last through 2021, but the engine is already back in production. Enthusiast website GM Authority learned from sources inside General Motors that the straight-six is once again coming off the assembly line at the Flint Engine Plant in Flint, Michigan. There's no official word on precisely what the problem was linked to and whether it was related to the on-going chip shortage that's wreaking havoc across the automotive industry. All we know is that the pause lasted for about two weeks. Called LM2 internally, the six is available in Chevrolet's Tahoe, Suburban, and Silverado 1500 and in GMC's version of these trucks. It's also an option in the Cadillac Escalade. It develops 277 horsepower at 3,750 rpm and a V8-like 460 pound-feet of torque at 1,500 rpm in every application, and it allows these big behemoths to post surprising fuel economy numbers. Fitted to a rear-wheel-drive Tahoe, the Duramax returns 21 mpg in the city, 28 mpg on the highway, and 24 mpg in a combined cycle, figures that make it more efficient than a Blazer. Demand for the diesel-powered trucks is relatively high. While the shortage undoubtedly took a toll on sales, the Duramax represented 8% of Suburban sales and 6% of Tahoe sales in May 2021. There are no other diesel-burning full-size SUVs available new so they have the market to themselves. On the truck side, Ram still makes the EcoDiesel available on some 1500 trims but Ford abandoned the segment. Related Video: Featured Gallery 2021 Chevrolet Tahoe RST View 24 Photos Chevrolet GMC Truck SUV Diesel Vehicles

Autonomous tech will drive motorheads off the road

While autonomous technology could make car travel much safer and more efficient — and automakers and marketers are salivating over the prospect of a "passenger economy" that could potentially generate $7 trillion by 2050 — those of us who enjoy driving are not so stoked. Experts have predicted that as autonomous vehicles are deployed in large numbers, human-driven cars eventually could be outlawed on public roads due to the carnage they create, which is currently more than 41,000 deaths a year in the U.S. alone and climbing. Such scenarios have driving enthusiasts envisioning a "Red Barchetta" style nightmare becoming reality, making Rush lyricist Neil Peart a clairvoyant as well as one of rock's most badass skin-pounders. But there could be a couple of refuges left for motorheads, and they won't be on public roads. As Popular Science's Joe Brown points out in a recent editorial, we're seeing a wave of vehicles being offered by legit mainstream automakers that aren't made for public roads. The poster child of this vanguard is the 2018 Dodge Challenger SRT Demon, which comes with a crate full of goodies that lets you turn the already formidable street-legal muscle car into a drag-strip dominator. Brown also notes that two out of five of the Ford GT's driving modes are for use on the track, "catering to the $450,000 machine's club-racing clientele." We're also currently enjoying the heyday of production off-road-ready pickups that kicked off with the Ford Raptor in 2009. The latest salvo in this escalating war of overachieving trucks is the Chevy Colorado ZR2 that can take on the likes of California's Rubicon Trail without issue. Brown also gives a shout-out to his magazine's Grand Award Winner, the Alta Motors Redshift MX, which "isn't even allowed on public roads" and is "meant for bombing around motocross tracks, big backyards and single-track woods trails." If you follow Brown on Instagram, you know that he's also a two-wheel aficionado, and he points out that sales of off-road bikes are leaving street machines in the dust. Sales of off-highway motorcycles rose 29 percent between 2012 and 2016, according to the ­Motorcycle Industry Council — compared to 6 percent for road-bike sales during the same period. "That's a nearly 400-percent drubbing," Brown remarks.

2016 Chevy Silverado puts on a better face

When Chevrolet introduced the redesigned Silverado pickup for 2014, you, our loyal readers, gave the new truck's front-end a lukewarm response. Aside from saying it was ugly, one commenter came to the far more damning conclusion that this brand-new vehicle already looked dated. For 2016, Chevy has attempted to address opinions like that, issuing a comprehensive facelift to its bread-and-butter pickup. Designers cut way back on the chrome for 2016, fitting a body-color strip across the middle of the grille and going to a single-headlight design. Combined with twin LED running lamps, the new look is much more modern while still harkening back to the retro-ish look introduced a few years back. The new truck also gets a much more muscular and aggressive hood, while the front bumper is significantly more modern, and features vertical housings for what look like LED foglights. The bad news, here, is that there's only one picture, shown above. We have no idea what changes Chevy has made to the rear of the pickup, nor do we know what other versions of the truck beyond the Z71 seen here may be available. The Bowtie brand did, however, confirm that we'd see a wider application of the eight-speed automatic transmission, as well as a new version of the MyLink infotainment system, which will play nice with both Apple CarPlay and Android Auto. Look for much more on the freshened Silverado when it makes its official debut this fall. Until then, check out the press release and hop into Comments. We'd love to hear what you think about this facelift. 2016 Silverado: The New Face of Strong - Bolder, more sculpted look reflects Silverado strength, dependability - Available support for Android Auto and Apple CarPlay - Expanded use of 8-speed transmissions; additional safety technologies DETROIT – Chevy Trucks are on a roll, with Chevrolet pickup sales up 32 percent so far this year. Chevrolet intends to strengthen this momentum with significant updates for the 2016 Silverado 1500 full-size pickup. "The redesigned 2016 Silverado will build on Chevy Trucks' legacy of dependability. It will feature a more muscular appearance and offer new customer-focused technologies," said Sandor Piszar, marketing director for Chevy Trucks.