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Submit your questions for Autoblog Podcast #310 LIVE!

We record Autoblog Podcast #310 tonight, and you can drop us your questions and comments regarding the rest of the week's news via our Q&A module below. Subscribe to the Autoblog Podcast in iTunes if you haven't already done so, and if you want to take it all in live, tune in to our UStream (audio only) channel at 10:00 PM Eastern tonight.
Discussion Topics for Autoblog Podcast Episode #310
Buick GN and GNX will return

Automakers' rush on aluminum may result in shortage

Aluminum is the new buzzword in the automotive industry. The latest Range Rover and Range Rover Sport both take advantage of the lightweight material to shave huge amounts of body fat (only it's called "aluminium" over there). Audi and Jaguar have been using the stuff for years in their A8 and XJ, respectively, and now, aluminum is going mainstream, arriving on the 2015 Ford F-150.
While we're excited to see aluminum make an impact outside the premium market, its widespread adoption apparently won't come without some problems, notably in terms of supply. "There isn't an automotive manufacturer that makes vehicles in North America that we're not talking to," Tom Boney, of Novelis, the largest global supplier of aluminum sheetmetal, told The Detroit News.
According to Boney, Ford's use of aluminum on such a large scale has forced auto manufacturers in "every boardroom" to reconsider their plans following the F-150's unveiling, for one simple reason: there's not exactly enough aluminum to go around, at least in the short term. The auto industry presently only accounts for six percent of the aluminum sheet produced, but as the material is adopted by more and more brands, that figure is expected to swell to 25 percent within the next six years.

2022 GMC Sierra Denali Ultimate vs. 2022 Ram 1500 Limited Longhorn vs. Ford F-150 Limited | Luxury truck interior face-off

GMC's new uber-expensive 2022 Sierra Denali Ultimate is the latest luxury truck to nudge toward six-figure territory. With demand for upmarket half-tons surging, GMC's otherwise-solid pickup found itself in desperate need of an interior remodel. For 2022, we're getting just that, and it appears ready to take the fight to the segment's best, including the 2022 Ram 1500 Limited and 2022 Ford F-150 Limited. Here's the new Denali Ultimate interior in all of its full-grain, open-pore glory. 2022 GMC Sierra 1500 Denali Ultimate vs. 2021 GMC Denali  Not only did the material quality and styling both improve greatly, but the new truck also gets a completely different shifter setup (truck buyers don't like column shifters anymore, apparently). It would actually be difficult to overstate the quality of the upgrade here; the photos really speak for themselves. It's also worth noting that in addition to looking significantly more upscale than the model it's succeeding, the new Denali interior also differs a bit more from its Chevy counterpart than its predecessor did. Here's the new Silverado High Country for reference: While some elements do carry over, the entire dash design is different, down to the positioning of the heating and cooling vents. While the main HVAC controls are essentially carried over, note that they're pretty much the only ones. Even the horizontal bar of switches running along the center stack is positioned differently between the two. Yep. This is a pretty big upgrade over the 2021 cabin, and clearly the range-topper in GM's truck hierarchy. But what of the competition? 2022 GMC Sierra 1500 Denali Ultimate vs. 2022 Ram Limited Longhorn Southfork This one's tough. We're going to have to spend time in them back to back, but the Ram Limited, with its various anniversary editions and other special permutations, is certainly the interior to beat. To our eyes, the Sierra's more horizontal layout is a bit more modern and perhaps luxurious-looking than the more upright cabin treatment of the Ram, but it's tough to say for certain from photos. Both the Denali Ultimate and Ram Limited carry their upscale feel into their back benches too, which is something we can't say quite as confidently about our next contestant.  2022 GMC Sierra 1500 Denali Ultimate vs. 2021 Ford F-150 Limited The Ford F-150 Limited holds its own, but it's probably the least photogenic of the models we've looked at here, at least apart from the outgoing Denali.