2003 Gmc Denali on 2040-cars

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2018 GMC Acadia with 'Christmas Aero' modification gets in the wind tunnel

Tis the season of "Big" - big cheer, big parties, big bowls of eggnog, big decorations, and when it comes to your family hauler, big drag. Festive drivers who festoon their crossovers, minivans, and SUVs with wreaths, Rudolph noses, fuzzy antlers, and rooftop Christmas trees undo the years of work that car engineers devote to fractional gains in fuel economy. To put numbers to such fuel-guzzling madness, GMC started with a 2018 Acadia, optioned it with the Xmas Aero Package - both Standard and Plus versions - put it in Lockheed-Martin's wind tunnel. The resulting dip in fuel economy results probably won't surprise anyone who's used a roof rack - or, for that matter, their car's air conditioning. However, it might surprise you to find out which seemingly substantial decoration had no effect, and which seemingly innocuous decoration was about twice as bad as running the A/C on its Mr. Freeze setting. Check out the brief video above for the results. And consider placement of that bow carefully.

GMC Sierra 1500 AT4X: Can you sleep in it?

Autoblog may receive a share from purchases made via links on this page. Pricing and availability are subject to change. The recently introduced GMC Sierra AT4X is an impressive combination of off-roading and luxury. But can you sleep in it? Pickups are great for towing campers or as a platform upon which to build out overlanding rigs, but from the factory they usually aren’t as useful as SUVs to sleep in, considering half of the length of the vehicle is taken up by the bed. Let's see how the AT4X fares. Space The biggest thing to consider when it comes to camping in your car is whether or not there is enough space in it for you and possibly a partner to lay down comfortably. This is tough when it comes to pickup trucks, which are hampered by the fact that half (or more) of the length of the vehicle is taken up by the bed of the truck. Some trucks have added features like lie-flat seats that make sleeping in them a bit easier, though itÂ’s still not a perfect solution. Unfortunately the AT4X is not one of those trucks. While the seats do lay back quite a good amount, I wasnÂ’t able to get comfortable enough to rely on them for a good nightÂ’s rest. To the rear we go. If youÂ’re vertically challenged, you may be in luck, especially if you donÂ’t sleep stretched out. The Sierra 1500 is a wide truck, almost 7 feet wide in fact. The rear bench measures 56 inches in width, which isnÂ’t a great option for most adults unless you really like sleeping in the fetal position. ItÂ’ll do in a pinch but I wouldnÂ’t expect to get a great night's sleep again and again.  Below the bench, which folds up and out of the way, is a relatively flat floor which can offer a bit more length. At 63” it still isnÂ’t enough for me to lie down with the doors closed, but it is much less cramped than spending the night on the bench. The subtle bump in the middle of the floor, which is much less severe than the ridges in the bed, can easily be remedied by an inflatable sleeping pad like the Sea to Summit Ether Light XT, or, even better, a cheap air mattress from Walmart. The Bed The bed of the AT4X seems like the most logical place to sleep. After all, it is named the bed for a reason right? If you have an inflatable mattress, then sure, but due to the ridges on the floor, a simple sleeping pad and sleeping bag will not be enough here. Additionally, the length of the bed leaves something to be desired.

2023 J.D. Power APEAL Study shows new-car customer satisfaction scores slip

J.D. Power survey results have been slightly up but mostly down for automakers this year, literally. In February, the 2023 Vehicle Dependability Study showed an overall decline compared the 2022 a month before the Customer Service Index Study did the same. The trend reversed in June with a better overall score on the 2023 U.S. Electric Vehicle Consideration Study than in 2022, then declined again the same month on with a lower overall score on the 2023 Initial Quality Study. The declines continue with the 2023 J.D. Power U.S. Automotive Performance, Execution and Layout (APEAL) Study, overall satisfaction among the 84,555 respondents down two points overall compared to 2022, to 845 out of 1,000 points. Because last year's score dropped compared to 2021, this year marks the first consecutive decline in the study's 28-year history. The study tries to "[measure] owners' emotional attachment and level of excitement with new vehicle" after 90 days of ownership by asking new owners to rate 37 attributes in 10 areas around the vehicle, such as the feeling they get when they hit the accelerator. Satisfaction with nine of the attributes is down this year versus last, fuel economy the only segment to show better results with 15 points more satisfaction. Styling and infotainment are big drags on satisfaction. Responses to new car exterior looks tallied 888 points, down from 894 last year, the largest drop in this year's study. On the digital side, less than half of those surveyed this year said they prefer using a manufacturer's built-in infotainment. From 70% of respondents in 2020 preferring to use a manufacturer's in-house software to play audio instead of Android Auto or Apple CarPlay, that's 56% in 2023. Going all-in on Google appears to have the best effect. J.D. Power said that vehicles with both Google's Android Automotive Operating System (AAOS) and Google Automotive Services (GAS) "score higher in the infotainment category than those with no AAOS whatsoever. AAOS without GAS receives the lowest scores for infotainment of the three categories."  Frank Hanley, senior director of auto benchmarking at J.D. Power, said, "Despite the technology and design innovations that manufacturers put into new vehicles, owners are lukewarm about them. While innovations like charging pads, vehicle apps and advanced audio features should enhance an owner’s experience, this is not the case when problems are experienced.