1987 Cadillac Fleetwood D'elegance Sedan 4-door 4.1l on 2040-cars

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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.

Facelifted Cadillac ATS spied completely uncovered

The Cadillac ATS makes for a pretty svelte little coupe, and General Motors appears to know it, because multiple, completely undisguised prototype sedans have been spotted testing wearing what look like many of the forthcoming coupe's body parts.
Not only does it wear at least the outline of the brand's new, broader crest, it has the same front air dam with continuous chrome strip found on the coupe. The only real difference is that it has the somewhat taller side view mirrors from the sedan, rather than the narrower, longer ones from the coupe. Around back, the changes are harder to spot because the test car is outfitted with an unpainted lower bumper. However, it seems to lack the chrome strip that offsets the lower portion of the coupe from the sedan.
The ATS sedan is already a looker, but it is good to see Cadillac is taking a second pass using what it learned on the coupe. There's no word yet on when this revised sedan is going to hit the streets - let alone what changes will take place beneath the skin - but we're thinking it looks about right for 2015.

Cadillac's de Nysschen takes aim at Porsche 911, Cayenne

Johan de Nysschen has big plans for Cadillac. He's moved the brand from Detroit to New York, revamped its model nomenclature, and planning a raft of new models for the near future – including a $250,000 luxury sedan to take on the likes of Rolls-Royce and Bentley. But the veteran executive of luxury automakers has some more performance-oriented machinery in mind, too. Speaking with Car and Driver at the Los Angeles Auto Show last week, de Nysschen suggested Cadillac could be ready to launch a flagship sports car sometime in the next decade. The halo model would take aim at the Porsche 911 and do for Cadillac what Audi did with the R8, Mercedes is doing with the AMG GT and Acura once did (and is aiming to do again) with the NSX. Just what form it would take remains a big unknown, but de Nysschen indicated that the brand would need to be built up further before the sports car would be launched, lest it emerge too detached from Cadillac's image. The last time Cadillac delved into that territory was with the Corvette-based XLR, of which it sold only 15,000 or so examples – far below initial targets. The 911 rival isn't the only performance model de Nysschen has in mind, however. He plans to further expand the V series into a more substantial sub-brand to include a crossover to take on the likes of the Porsche Cayenne Turbo, BMW X5 M and all those many AMG-tuned Mercedes utilities. The idea of an entry-level model to slot in below the ATS was mooted as well. A range of diesel engines are slated to help Cadillac break into overseas markets in similar fashion to how Maserati has expanded its market reach with oil-burning versions of the Ghibli and Quattroporte. And we wouldn't be surprised to see Cadillac get in on a new flagship SUV being launched by Opel in Europe, either.