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3 Quick Takes on the new Hummer EV

The 2022 GMC Hummer EV truck debuted Tuesday with 1,000 horsepower and up to 350 miles of range. It marks the return of the Hummer name after a decade-long absence and is the most ambitious electric vehicle General Motors has attempted. Here are three quick takes. This is how major vehicles will be revealed going forward The unveiling during Game 1 of the World Series on Fox and during The Voice on NBC could only have been bigger if done during the Super Bowl. A two-network debut complete with LeBron James providing voiceover for the commercial. On Fox, World Series play-play man Joe Buck neatly set up the spot and told millions of viewers that the order bank was now open. Then the Hummer debuted in what looked like a cut from the next Transformers movie. OK, this is not how every major car will be revealed, but the direct-to-consumer, as-many-eyeballs-as-possible, made-for-TV (or social media) event will be a key strategy going forward. In the last few months, the Detroit, Los Angeles and New York auto shows have all played leapfrog with dates, confusing many observers. The pandemic has obviously exacerbated the decline of auto shows, but if you’re an automaker, why share the spotlight in a convention hall? Most car reveals wonÂ’t be network TV spectacles, like the Hummer, but streaming services and other platforms will make a lot more sense than traditional means as companies compete for new buyers. This is how the Tesla Cybertruck should have looked Most would say the Hummer is pretty cool looking. The headlights, the grille, the blocky fenders and huge wheels — yeah, this looks straight out of central casting. ItÂ’s what you expected the reborn Hummer to look like, nominally now in the service of the GMC brand. Tesla made the Cybertruck a bit too crazy. Sure, itÂ’s attention-getting. But look at the Tesla. No one can objectively say the Cybertruck is aesthetically pleasing, from the shape to the features. ItÂ’s out-of-step with the graceful Model S and Model 3 sedans. The Hummer is futuristic, has interesting elements — like underbody cameras for off-roading and a T-top — and a massive presence. It doesnÂ’t need to do more. The addition of Super Cruise technology, however, is a nice touch. GM is serious about EVs The Hummer leads a blitz of EVs from GM, which is quietly yet ambitiously laying out an electric future.

2020 GMC Sierra HD caught in double-cab, low-trim gas-engine guise

Naturally when the 2020 GMC Sierra HD was revealed, GMC picked the flashiest, most-impressive Denali model with the big crew cab configuration and diesel engine. But obviously not all will be equipped that way, so it's exciting to see a lower trim model like the truck above. This 2020 GMC Sierra HD is a more modest SLT trim model equipped with the gas V8 and lacking the MultiPro tailgate. Styling doesn't take a hit with the shorter shape, and arguably, it looks more athletic without so much metal between the wheels. The length is the only real difference, with the rest of the sheetmetal just as chisled on the bigger version. Interestingly, this gas-powered Sierra HD still has a big hood scoop from its diesel sibling. On the current GM heavy duty trucks, only the diesel models get a scoop, and it's specifically for getting more cool air to the intake. The Silverado HD may continue this differentiation, but GMC is clearly keeping it for all models. When the Sierra HD goes on sale this summer, it will be available with either a 6.2-liter gasoline V8 like in this truck, or a 6.6-liter turbodiesel V8 making 445 horsepower and 910 pound-feet of torque, the same as the current model. All models get bedside steps, and the MultiPro tailgate is available either as standard or an option with all trims. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

'Killing a Duramax' Gale Banks YouTube series methodically tunes a diesel to death

Learning or perfecting a skill by watching YouTube videos is known as attending YouTube University. GM Authority picked up on one of the video site's more fascinating courses, hosted by Gale Banks; in a fair world, he should be referred to as Professor Banks when it comes to diesel engines and truck tuning. A few months after GM introduced the updated L5P 6.6-liter Duramax diesel V8 in the 2020 Chevrolet Silverado HD and GMC Sierra HD that ships with 454 horsepower and 910 pound-feet of torque, Banks decided he wanted to methodically tune the engine to death. The purpose of the resulting series, called "Killing a Duramax," is to push more power out of the engine in order to discover which parts break and when — or, as Banks puts it, force-feed the Duramax "until the crank hits the street and the heads hit the hood." With that knowledge, Banks can figure out all the weak points on his way to building what he calls a "Superturbo," that being a supercharged, twin-turbo race engine with more than 1,000 hp. What makes the series fascinating is Banks' knowledge, paired with the company's comprehensive iDash engine monitoring system that keeps tabs on a glut of parameters every step of the way. So for instance, you get Banks explaining the differences between inches of mercury and barometric pressure, how those are different from the water content of the air measured in grains, then showing those readouts on the iDash, then explaining in detail how they affect the air density in the Duramax system. The stock Borg-Warner variable turbo gets a lot of airtime — Banks accuses it of being "out to lunch" because he feels it's the weakest link on the engine. That turns into a turbo teardown and a deep explanation of performance pitfalls, such as when air pressure on the turbine begins to diverge from the boost pressure coming from the compressor. Banks says he can keep close tabs on where power's coming from, because the iDash monitors the horsepower contribution provided by the ambient air, the turbo, and the intercooler separately. The major changes so far are a stouter Precision 7675 turbo and TurboSmart wastegate (episode 5), a twin intake (episode 6), a custom liquid-cooled intercooler from a marine engine, a new GM oil cooler and synthetic oil (episode 10), and new injectors (episode 11).