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Diesel details: Comparing Ram 1500 EcoDiesel, Chevy Silverado Duramax, Ford F-150 Powerstroke

With specifications for the 2019 Ford F-150 Power Stroke diesel already out, and the details on the 2020 Ram 1500 EcoDiesel and Chevy Silverado Duramax (and its GMC Sierra twin) trickling out, we felt it was a good time to start comparing the full-size trucks' light-duty diesels. Bear in mind, we've only driven one of these new diesel trucks, so we'll be sticking to numbers for now. Some numbers haven't been announced yet, either, but stay tuned, because we'll be updating this post with additional specifications as they become available. And if you want to compare any other versions of these trucks with other vehicles, be sure to check out our comparison tool. Now let's start comparing, starting with our big chart of numbers below. As we can plainly see, these trucks are quite closely matched. Each one has six cylinders, a displacement of 3.0 liters and a turbocharger to boost it. The output of each is somewhat close, too. The Ram 1500 EcoDiesel is the torque king at 480 pound-feet, 20 more than the GM trucks and 40 more than the Ford. The GM trucks win on power, though, with 277 ponies, 17 more than the Ram, and 27 more than the Ford. GM does report that you get their trucks' peak 460 pound-feet of torque from 1,500 rpm to 3,000 rpm, whereas the others only report peak torque at a particular point in the rev band, but all of these trucks should have wide, flat torque curves as you would expect from modern turbodiesels. 2020 Ram 1500 EcoDiesel View 8 Photos Engine output is only one part of the truck performance equation. We also have towing and payload capacity, as well as fuel economy. With towing, the Ram 1500 is the current leader with a maximum capacity of 12,560 pounds. That tops the Ford F-150's 11,400-pound tow rating by well over 1,000 pounds. The F-150 can carry 2,020 pounds in its bed, but we don't know yet whether that's better or worse than the Ram or the GM trucks. We also don't have numbers for the GM trucks' towing capacities. View 9 Photos As for fuel economy, the Ford F-150 manages a thoroughly impressive 22 mpg in the city and 30 on the highway with two-wheel drive. Choosing four-wheel drive drops those numbers to 20 and 25 respectively. The fuel economy numbers for the Ram, Chevy and GMC haven't been revealed yet, but for some comparison, we can look at the old Ram EcoDiesel. That truck's best fuel economy was 20 in the city and 27 on the highway with two-wheel drive.

Barrett-Jackson is auctioning the first 2022 GMC Hummer EV for charity

Unveiled in late 2020, the GMC Hummer EV Edition 1 was so popular that enthusiasts scooped up the entire production run in merely 10 minutes. If you missed your chance to reserve one, you're in luck if your pockets are deep enough. Auction house Barrett-Jackson will sell the first example off the production line for a great cause. VIN 001 will be up for grabs during a sale that starts in Scottsdale, Arizona, on March 20. Hummer production hasn't started yet, so we don't know precisely what the truck will look like and it won't physically cross the auction block. Barrett-Jackson did not provide a pre-auction estimate, but it pointed out that 100% of the proceeds from the sale will be donated to a charity called Stephen Siller Tunnel to Towers Foundation that helps wounded first responders and veterans across America. Charity auctions normally bring big dollars, so a sold-out flagship variant of a highly-anticipated model whose base price is pegged at $112,595 could sell for a seven-digit sum. Edition 1 deliveries will start in the fall of 2021, meaning the winning bidder will need to wait a few months before exploring the great outdoors in the 1,000-horsepower electric truck. More affordable trim levels are in the pipeline, but they're not exactly around the corner. GMC will expand the range by launching three trim levels called EV2, EV2X, and EV3X, respectively. Equipped with three electric motors, the EV3X will land in the fall of 2022 with a $99,995 base price. Pricing for the two-motor EV2X due out in the spring of 2023 starts at $89,995, while the entry-level EV2 will arrive a year later priced at $79,995. None of these figures include available incentives. Looking ahead, the Hummer EV will spawn an SUV that will make its official debut online in February 2021. We don't know when it will reach showrooms yet, but we're not expecting to see it until 2022 at the earliest.  Barrett-Jackson's Scottsdale sale includes sports cars from every era, ranging from a custom 1928 Ford Model A to a 2021 Honda Civic Type R. Ram's first 1500 TRX is on the roster, too, and it will also be sold for charity. Another stand-out car from the catalog is the first production version of the 2020 Chevrolet Corvette Convertible. Finished in black with a black and red leather interior, it's powered by a mid-mounted, 6.2-liter V8 engine rated at 495 horsepower, and it's equipped with the 3LT and Z51 packages plus the Performance Data Recorder, among other features.

Fullsize GM SUVs have a problem that's making owners sick

Some fullsize SUV owners are getting sick, thanks to a buffeting and vibration problem in 2015 model year examples of the Chevy Tahoe and Suburban, Cadillac Escalade, and GMC Yukon. According to owners' complaints to the National Highway Traffic Safety Administration, the issue can vary from an annoying vibration inside the cabin to an experience so severe that it leads to dizziness and headaches. General Motors is aware of the complaints, but the fix isn't so simple. According to spokesperson Tom Wilkinson to Autoblog, the company "has been tracking this issue for a while." The problem has a fairly low incidence rate, but when it does occur the issue can be "uncomfortable and annoying for owners." There's no precise cause for the issue, Wilkinson claims, and in some cases, simply balancing the tires or changing the door seals can make it go away. However, not all of the fixes are so simple. AutoGuide dug deep into the problem and discovered a GM preliminary information bulletin that advised dealers to remove the headliner and to check the roof's bonds to the bows that go across the vehicle. However, that document included a note that the solution might not entirely eliminate things. According to AutoGuide, adding Dynamat insulation to the roof sometimes helped the problem. A GM spokesperson also told AutoGuide the company fixed the problem at the end of the 2015 model year, and didn't go into any more detail. This roof issue seems linked to some of the worst droning in these SUVs. According to one complaint from a 2015 Suburban owner to NHTSA: "Roof will not remain attached to the roof bows. This causes the buffeting similar to a window being down when all are up. The results span from annoying to painful." A 2015 Yukon owner claims to have another alleged cause for the problem in a NHTSA complaint from February 2015. This person brought their SUV to the dealer seven times over the course of four weeks for vibrations. The dealer replaced the driveshaft, suspension components, and more, but nothing worked. According to an engineer to the service adviser: "In an effort to prevent roll overs, they designed the frame and body mounts too stiff. There are 40 engineers working on issues, they have no solutions that work across the board." Wilkinson told Autoblog that GM is working with customers on an individual basis to rectify things. Since these are newer vehicles, dealers should also fix the problem under warranty.