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UAW strike's three-pronged attack focuses on popular midsize trucks, SUVs

The United Auto Workers announced at midnight last night that they would begin targeted strikes at Ford's Michigan Assembly, Stellantis' Toledo Assembly and GM's Wentzville Assembly — all three home to midsize pickups and, in the case of Toledo and Michigan, popular midsize SUVs.  The Ford Ranger, Jeep Gladiator (just updated for 2024), Chevy Colorado and GMC Canyon are all built on lines that have been shut down by the strike. The Ford Bronco and Jeep Wrangler, which share fundamental underpinnings with the Ranger and Gladiator, respectively, are also in on the party. GM's Wentzville Assembly also builds the GMC Savana and Chevy Express vans, neither of which is a big player in the retail market. While midsize pickups may not move in the quantities we see from the half-ton segment, all of these are fairly high-volume models. Ford sold nearly 120,000 Broncos along with more than 55,000 Rangers in 2022; Wrangler and Gladiator combined for nearly 260,000 units last year (181,000 of those were Wranglers) and the Colorado/Canyon represented more than 117,000 sales for General Motors. Throw in the nearly 80,000 units for Chevrolet Express and GMC Savana, and production from these facilities equated to more than 500,000 units sold in 2022.  Ford has been struggling since launch to deliver its wildly popular Bronco to waiting enthusiasts. With supply woes largely easing last year, the company caught up to a great deal of its pre-existing demand, but lingering supply chain and quality control issues have continued to plague the manufacturer even as general constraints have eased. Even earlier this year, Ford said it was selling every unit it could produce. The Ranger, freshly redesigned for the U.S. market, is still getting its feet wet.  Jeep likewise has been on a tear. Sales of the 4x4 have remained so steady that the Wrangler 4xe became the country's best-selling plug-in hybrid vehicle pretty much by accident. Jeep just formally confirmed this week that a 4xe variant of the Gladiator pickup is on the way by 2025 — and they said you couldn't sell hybrids to truck and SUV buyers.  At GM, meanwhile, the Colorado and Canyon are sporting fresh redesigns for the 2023 model year, with production of both still ramping up. And while the Chevy Express and GMC Savana vans may not be popular consumer models, GM still sold more than 77,000 of them last year combined.  Related video: Plants/Manufacturing UAW/Unions Chevrolet Ford GMC Jeep Truck SUV

How GM engineers are using diaper 'snow' to keep you warm

Testing how snow affects General Motors' vehicles isn't really a problem right now for the company's engineers, but in the dog days of summer the process isn't exactly easy. The only real option is for them to book time at the automaker's climatic wind tunnel. However, a flash of brilliance from an engineer allows snow to be simulated regardless of the temperature outside, and the discovery is all because of his daughter's wet diaper. The realization came to GM Thermal Systems engineer Nicholas Jahn while he was swimming with his daughter and noticed how her diaper ballooned in size in the water. He found out the substance that makes this possible is called sodium polyacrylate. When the material gets wet it grows and forms fluffy flakes that are a close imitation of snow. Best of all, the stuff can be prepared easily any time of the year, and it's reusable. The engineering team uses the material to test the effectiveness of the heating systems of GM's vehicles. They spread the sodium polyacrylate over the inlets at the base of the windshield to obstruct the airflow and then crank the heater. After some time, they can see how much is being sucked into the system and design more efficient systems in the future. See how the process works in the video above and read about the diaper discovery in GM's press release below. Diapers Change Chevy Cruze Winter Warm-up Time GM validation engineer uses diaper material "snow" to reduce frigid drives 2015-01-06 DETROIT – An item commonly found on an infant's changing table is helping General Motors' engineers simulate snow year round, ensuring heating systems in cars like the 2015 Chevrolet Cruze can quickly and efficiently warm its interior. Packed snow can prevent air from entering the inlet panel at the bottom of the windshield, obstructing the flow of air into the heating system and reducing the amount of air it can push out. This can lead to less efficient warming of the car's interior and windshield defrosting. "The last thing anyone wants to do when it's freezing cold out is scrape their windshield," said Nicholas Jahn, GM Vehicle Thermal Systems engineer. "The testing we perform on the Chevrolet Cruze with the diaper material allows us to maximize the car's heating capabilities." Ironically, Jahn stumbled upon his diaper-based testing method in the middle of summer. During a swim with his daughter, he noticed her diaper multiplied in size when it came into contact with water.

Watch this time-lapse build of the Chevy SS for NASCAR

There's only about a week left until we get our first look at the production version of the 2014 Chevrolet SS sedan, but Chevrolet NASCAR teams have been looking at the race version of the car all winter. Autoweek has posted a really neat time-lapse video showing just a portion of what it takes to build one of NASCAR's new Gen6 stock cars.
Though the video is quite brief, it does show almost the entire build process starting with just the car's nose, and it gives us a good look at how integral the template is to the final product. As a bonus, Hendrick Motorsports also provided some videos showing two of its teams performing pit stop tests over the winter. The second video shows some of the more detailed aspects of the racecar's rear end, including the stock-looking trunk cutout and a newly mandated rear bumper extension that will be used on super speedways like Daytona and Talladega.
To see what Team Chevy has been up to all off-season, check out all three videos posted after the jump.