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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.

Top Gear names BMW i8 Car of the Year, Corvette, Ferrari, Mercedes also win big

The lads at Top Gear have released their listing of the finest cars of the past year, handing the ultimate honor to BMW's revolutionary i8 plug-in-hybrid supercar. "The i8 is a milestone in the annals of automotive history and a glorious statement for an exciting and positive future. The i8 delivers - and then some," the British mag wrote. The i8, though, was far from the only hybridized car to take victories. James May and Richard Hammond both highlighted hybrids as their personal cars of the year, with May saluting the Ferrari LaFerrari and the Hamster, unsurprisingly, heaping praise on the Porsche 918 Spyder. Jeremy Clarkson, meanwhile, opted to shock many by selecting not only an American car as his best of 2014, but giving the honor to of all things, a Corvette. Clarkson wasn't the only person to honor the USA's iconic sports car, with the new, 650-horsepower Z06 variant being named TG's Muscle Car of the Year. Other big winners include Mercedes-Benz, which TG honored for S-Class Coupe (Luxury Car of the Year), the new AMG GT (Sports Car of the Year) and the not-for-US C-Class Estate (Family Car of the Year). The 458 Italia Speciale A snagged a second win for Ferrari. The best of the rest include the Citroen C4 Cactus, Renault Twingo, Volkswagen Golf R, Lamborghini Huracan and Audi TT. Take a look below for the celebratory press blast from BMW. The BMW i8 wins Top Gear Car of the Year The BMW i8 has been named as Top Gear magazine's global Car of the Year 2014. The plug-in hybrid performance vehicle beat off some stiff competition from a host of other premium and luxury manufacturers to win the overall award. The editorial team of Top Gear commended the BMW i8 for its breadth of abilities. Its 1.5-litre three-cylinder turbocharged petrol engine combined with an electric motor gives searing acceleration and driver enjoyment but all wrapped in a package that takes BMW's EfficientDynamics philosophy to the extreme courtesy of CO2 emissions less than 49g/km and a 135mpg combined cycle figure. Charlie Turner, Editor in Chief at Top Gear magazine, said: "The BMW is a milestone in the annals of automotive history and a glorious statement for an exciting and positive future. The i8 delivers – and then some. It's the kind of car we should celebrate, a beautiful vision of the future, delivered now.

BMW, Hyundai score big in JD Power's first Tech Experience Index

While automakers are quick to brag about winning a JD Power Initial Quality Study award, the reality, as we've pointed out before, is that these ratings are somewhat misleading, since IQS doesn't necessarily distinguish genuine quality issues. JD Power's new Tech Experience Index aims to solve that problem. The new metric takes the same 90-day approach as IQS but focuses exclusively on technology – collision protection, comfort and convenience, driving assistance, entertainment and connectivity, navigation, and smartphone mirroring. It splits the industry up into just seven segments, based loosely on size, which is why the Chevrolet Camaro is in the same division (mid-size) as Kia Sorento and the Mercedes-Benz GLE-Class is in the same segment as the Hyundai Genesis (mid-size premium). It makes for some screwy bedfellows, to be sure. Still, splitting tech experience away from initial quality should allow customers to make more informed and intelligent decisions when buying new vehicles. In the inaugural study, respondents listed BMW and Hyundai as the big winners, with two segment awards – the 2 Series for small premium and the 4 Series for compact premium, and the Genesis for mid-size premium and Tucson for small segment. The Chevrolet Camaro (midsize), Kia Forte (compact), and Nissan Maxima (large) scored individual wins. Ford also had a surprising hit with the Lincoln MKC, which ranked third in the compact premium segment behind the 4 Series and Lexus IS. This is a coup for the Blue Oval, whose woeful MyFord Touch systems made the brand a victim of the IQS' flaws in the early 2010s. But Ford and other automakers might not want to celebrate just yet. According to JD Power, there's still a lot of room for improvement – navigation systems were the lowest-rated piece of tech in the study. Instead, customers repeatedly saluted collision-avoidance and safety systems, giving the category the best marks of the study and listing blind-spot monitoring and backup cameras as two must-have features – 96 percent of respondents said they wanted those two systems in their next vehicle. But this isn't really a surprise. Implementation of safety systems from brand to brand is similar, and they don't require any input from users, unlike navigation and infotainment systems which are frustratingly deep.