2000 Chevrolet Blazer Ls 4x4 Sport Utility 4-door 4.3l on 2040-cars

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The Chevrolet Bolt is headed to China as a Buick SUV

When spy photos of what appeared to be Chevrolet Bolt EV with some minor front- and rear-end updates circulated last week, Autoblog surmised that GM was working on some sort of Bolt-based vehicle — potentially a crossover — to be sold in China as a Buick. We may just have corroboration for that theory. On Thursday, Motor1.com spotted a story published earlier this week on the Chinese site Auto Home which claims that GM has applied to sell an all-electric SUV under the Velite 7 nameplate in China.  There's little differentiating the Velite 7's exterior from the Bolt EV's, apart from bumpers, badges, and a little extra ground clearance. Up front, the bowtie is replaced by a round Buick badge, and the bumper picks up an almost Prius-like appearance thanks to contrasting vertical elements and a thin grille bleeding into the head lights to give it a full-width appearance. Chevy Bolt-based prototype View 16 Photos If the Chinese report is accurate, there is one significant difference under the skin. Per the application, the Buick crossover variant is to be powered by a 174-horsepower electric powertrain. That's down 26 horsepower from the Bolt EV's powertrain, and we can't help but think that a lifted Buick variant might just need every pony it can get.  The needs of the Chinese market are unique, and we're certain GM knows what it's doing if these figures are accurate. We have no reason to believe Buick plans to sell the Velite 7 EV here in the States, though we expect an updated Chevy Bolt eventually, and we wouldn't be surprised if Buick brings something along shortly to fill the void left by the departure of the Regal sedan and its variants.  Related Video:

'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).

2018 Ford Expedition vs other big SUVs: How it compares on paper

With our Alex Kierstein rightly impressed in his first-drive review of the new 2018 Ford Expedition, we decided to dig a little deeper into the numbers, and we came up with the spreadsheet below to highlight how the new 2018 Expedition compares on paper to its main full-size SUV competitors: the 2018 Chevy Tahoe and Suburban (and therefore the 2018 GMC Yukon), 2018 Toyota Sequoia and 2018 Nissan Armada. We also threw in the new, even bigger 2018 Chevrolet Traverse since, as you'll see, its massive dimensions should put it on the radar for anyone who needs loads of passenger and cargo space but doesn't care as much about towing. A few notes about the chart above. First, the 6.2-liter V8 that's included with the new-for-2018 Tahoe RST trim level is the standard engine on the GMC Yukon Denali. You can apply most of the Tahoe's numbers to the entire Yukon and Yukon XL lineup. Second, though we highlighted categories where the Traverse led, we also highlighted the runner-up full-size SUV, since this was ultimately about that segment. Traverse numbers are broadly applicable to the new Buick Enclave. Related Video: Chevrolet Ford GMC Nissan Toyota SUV Comparison consumer ford expedition gmc yukon chevy traverse toyota sequoia nissan armada chevrolet tahoe ford expedition max