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GM Design shows what could have been and what might be

We periodically like to check in with GM Design's Instagram account to see what they're cooking up. Even better is when we catch a glimpse of an alternate history of what legendary designers from The General's past were thinking, though those ideas may not have made it into production. This week, for example, the account posted some illustrations from George Camp, whose career at GM spanned nearly four decades, from 1963 to 2001. One of the renderings is of what appears to be a 1971-72 Pontiac GTO Judge, but with two headlights instead of the production unit's quad beams. The rear departs from the canonical version most dramatically, with a massive integrated wing. Other bits that didn't make the production cut include large side vents, a gill-like side marker and rectangular intakes below the headlights that wouldn't be out of place on a modern design today. Amazingly, from what we can make out of the date, it appears that the drawing was done sometime in 1965, which makes it quite prescient.           View this post on Instagram                       A post shared by GM Design (@generalmotorsdesign) There's also a very aerodynamic interpretation of a Corvette ZR-1. To our eyes it splits the difference between the 1986 Corvette Indy concept and a fourth-generation F-body Pontiac Firebird, so perhaps parts of Camp's work on this sketch did make it into physical form. There's also a radical sports car concept from May 1970 that resembles the Mazda RX-500 concept from the same year, a Syd Mead-looking Cadillac coupe, and an Oldsmobile with a cool take on the company's trademark waterfall grille and elements of the Colonnade Cutlass at the rear. Other recent posts include a FJ Cruiser-like off-road EV, a sleek coupe with the Chevy corporate grille, and a rendering of a Silverado-esque pickup that looks far better than the current production version.           View this post on Instagram                       A post shared by GM Design (@generalmotorsdesign) It's pretty easy to lose hours in the account, but it's always fascinating to see GM's visions of what could have been and what might be. Related Video:

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.

2021 Cadillac Escalade will get next-gen Super Cruise with auto lane-change

Super Cruise is getting its first big update since it was originally launched on the 2018 CT6 sedan. As that large car fades away, this new version of Super Cruise will be coming online in the 2021 CT5, CT4 and … the 2021 Escalade! Yes, ladies and gents, Cadillac is finally applying its advanced driver assistant to the iconic Escalade. The biggest change to this version of Super Cruise is a new feature called “Lane Change on Demand.” When Super Cruise is engaged, the driver can tap the turn stalk, and the car will execute a hands-free lane change if itÂ’s safe to do so. This kind of lane-change functionality is similar to that offered by other manufacturers' systems (i.e. Mercedes-Benz, Tesla, BMW). However, like the rest of Super Cruise, the car is able to complete the task with the driverÂ’s hands completely off the steering wheel so long as the driver monitor can tell that youÂ’re paying attention. Further improvements abound. “This is our most extensive update weÂ’ve made to Super Cruise since its debut,” said Mario Maiorana, Super Cruise chief engineer. “We have made a number of improvements to make Super Cruise more intuitive, better performing and more accessible for our customers. In addition to the automated lane change functionality, weÂ’ve made improvements to the user interface and hands-free driving dynamics.” Cadillac says that it has gathered richer map information to make the lane change function possible and also to make turns and highway interchanges smoother. The software was also improved with the aim of gaining “better steering and speed control.” Cadillac also made the system easier to engage. It did this by allowing the operator to switch the Super Cruise system on, and then get the vehicle in a proper lane position — it automatically activates once the vehicle is positioned. Previously, the driver had to get the vehicle centered in the lane properly, and then you were allowed to switch the system on. The auto lane changing function operates similarly to other systems like it. When driving, you can either tap or fully depress the turn signal stalk. The car then looks for an acceptable opening in the indicated lane. Once found, the car begins its lane change. Within the gauge cluster, there are animations that keep the driver apprised of the lane change at all times. Once the vehicle has moved into the new lane, itÂ’ll shut the turn signal off and continue driving along.