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Why an independent rear suspension for GM's new, full-sized SUVs wasn't easy

A Motor Trend report last month laid out how Cadillac's 4.2-lier twin-turbo Blackwing V8 could be an orphan due to cost concerns in the GM empire. Last-minute chassis changes to Cadillac's new sedans and XT6 crossover led to engine bays that couldn't fit the Blackwing. On the SUV side, according to the report, the new independent rear suspension for big people haulers cost so much to implement that GM ruled out reworking the Escalade to accept the Blackwing. At least one commenter rightly asked how could a suspension swallow that much money. A new piece in Motor Trend has the answer. The excellent Alissa Priddle spoke to Tim Herrick, GM's executive chief engineer for full-size trucks, about why the clean-sheet IRS cost "multimillions of dollars."  First, GM would need to build a new body shop at the Arlington, Texas plant that assembles the automaker's big SUVs to stamp the numerous wholly new parts and panels accommodating an IRS. Then GM would need to design and pay for a new assembly process. On top of those up-front costs, there was the incremental cost of the four-link IRS components being more expensive than those in the trucks' former leaf-sprung solid axles. Herrick endured so many rejections for so long that he remembers the date and time when he got approval for the new unit. He said it came down to a meeting where he told a higher-up, "I'll make you a deal: If we get to the reveal, or if we launch this and you think this was a dumb idea, I'll hand you my badge and let you walk me out." Head to Motor Trend to read the full story. Based on Herrick being on stage to help present the new SUVs to the press, and on our First Ride in the new Chevrolet Tahoe and Suburban at GM's Milford Proving Grounds, it appears this will have a happy ending for all involved. Furthermore, since Herrick worked on the T1 platform that supports the big SUVs as well as the light- and heavy-duty pickups, he understood the demands on the commercial side, too. That could be why when Roadshow asked Tim Asoklis, chief engineer of the Tahoe and Suburban, if the new IRS could endure life in the Chevrolet Silverado and GMC Sierra, Asoklis answered, "Oh, absolutely." Related Video:    

Chevy Silverado Realtree Edition calls to your inner woodsman

Hunters and woodsmen, this could be your next pickup truck. It's a special-edition Silverado, done up with the camo specialists at Realtree. This truck packs all the off-road equipment you could want, and boasts a special appearance package to set it apart from ordinary citified pickups. The Realtree edition is based on the 2016 Chevy Silverado 1500 in LTZ trim with a crew cab and the Z71 package. It's all blacked out, from the bodywork and Bowtie emblems to the side steps and 20-inch wheels with their all-terrain tires. It features Realtree logos and camouflage graphics inside and out, and since it comes with the Z71 pack, it also features monotube shocks, a locking rear diff, an underbody shield, and hill-decent control. This special edition results from a decade-long partnership between Chevrolet and Realtree, but stops short of a full camo treatment. For that, you may want to scope out the Special Ops edition recently confirmed for production after its debut at SEMA (alongside another Realtree show truck). Outdoorsy types, however, may very well be more attracted to this Realtree special, which could prove just the foil GM needs to the Ram Mossy Oak Edition. It launches in the spring, just in time for hunting season – though you'll still need to fit your own gun rack. Related Video: CHEVROLET INTRODUCES SILVERADO REALTREE® EDITION HERE'S THE STORY Chevrolet today introduced the 2016 Silverado Realtree® Edition – an outdoors-inspired special edition that leverages the strength, versatility and personalization possibilities of the Silverado and distinguishes it with camo graphics from Realtree, the world's leading camouflage brand. It's the latest and strongest example of a decade-long partnership between Chevrolet and Realtree. PRODUCT DETAILS The new Realtree® Edition package is offered on Silverado 1500 LTZ Z71 crew cab models and includes exterior camo graphics and the Realtree logo embroidered on the front-seat headrests. Additionally, interior attributes feature the Realtree camo logo and graphics. The Silverado Realtree® edition also includes special blackout trim, black bow ties, off-road assist steps and black 20" wheels with all-terrain tires. Also included is the legendary Z71 off-road package featuring Rancho monotube shocks, Hill Decent Control, an underbody shield and the G80 auto locking rear differential.

Autotrader picks best cars for 2015's college grads

Summer is here and the school season is winding to a close. That means millions of students will be graduating college and (hopefully) entering the workforce. For many, that will mean buying a new car suited to the new stage in life into which they will now be embarking. That can be a bewildering choice, especially for someone who's never bought a car before. Fortunately, Autotrader has come up with a short list of recommended cars – new and used – which it recommends to the graduating class of 2015. Among the site's top choices are some compelling crossovers and hatchbacks, including the Buick Encore, Chevy Trax, and Jeep Renegade, as well as the Honda Fit, Nissan Versa Note, Mazda3 and Fiat 500. Can't stretch to buying new, or don't see the point? Autotrader has also identified the Toyota Camry, Ford Fusion and even the Lexus IS as smart buys in the certified pre-owned category. "Any time someone goes through a major life change, such as graduating college, they need to determine if their current ride makes sense for their lifestyle, from both a financial and functional perspective," says Autotrader editor Brian Moody. "For example, while that hand-me-down SUV from your parents was nice when you turned 16, you may want to opt for a safer, more fuel-efficient car as you transition into the working world." Autotrader Names 10 Best Cars for Recent College Graduates ATLANTA, May 28, 2015 /PRNewswire/ -- For many, graduating college is a milestone like no other – it represents a new chapter, a proud accomplishment and, fortunately or unfortunately, financial independence. Luckily for graduates who are in the market for a new car to suit their post-college lifestyle, Autotrader's expert editors say now is a great time to make a purchase, as dealerships are flush with affordable models that are fun, fuel-efficient and thoughtfully designed. Autotrader Logo "Any time someone goes through a major life change, such as graduating college, they need to determine if their current ride makes sense for their lifestyle, from both a financial and functional perspective," said Brian Moody, site editor for Autotrader.