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Corvette racer Gavin confirms Grand Sport debut in Geneva

Need further proof that Chevrolet is trying to turn the Corvette into a truly globe-spanning sports car? Then check out this Instagram post from Corvette Racing's Oliver Gavin that shows a new Grand Sport model will debut not at Detroit, or Los Angeles, or even New York, but at Geneva. In Switzerland. That's in Europe, land of Bugatti, Porsche, Ferrari, and Aston Martin. Gavin hasn't deleted the image as of this writing, but is probably getting an earful from his Chevrolet handlers at this moment. His post shows a number of press materials, including a schedule for Chevrolet's press conference, slated for late tomorrow morning (Geneva time, of course). Gavin will be handling the introduction at the Palexpo, and he'll be joined by Corvette chief engineer Tadge Juechter, who according to the materials will be driving the new Grand Sport on stage. It's a bold move on the part of Chevrolet, showing its homespun Kentucky-built Corvette alongside debuts like the Bugatti Chiron and Aston Martin DB11. But while we now know that the Grand Sport is coming tomorrow, our next question moves on to how it will look and perform. Will Chevy revive the classic Grand Sport color scheme – a single wide, white stripe on an Admiral Blue body with two red accents on the driver's front fender – or follow the example set by the C6, which went for a subtler look with classic Cunningham-like stripes? Will there be any performance advantages over the standard model? Perhaps less weight and a smidge more power? Chevy's Geneva presser kicks off at 10:45 a.m. or 4:45 a.m. here on America's east coast. We'll be on hand both in Geneva and here at home to cover all the excitement, so check back then. And bring coffee. Related Video:

2016 Chevrolet Volt Beauty-Roll

For those of you paying attention, we've really ramped up the old Autoblog video game these days. Our new series Car Club USA joins Translogic and The List, and there are more Daily Drivers and Short Cuts than ever. But sometimes, all you care about is the car. The Autoblog Beauty-Roll video series has one goal: bring you glossy video images of cars, and nothing but. We're collecting moving pictures of all the cars we test, inside and out. Each episode comes with a hit of engine sound – start-up and with a few revs – to round out the package. Set your resolution to max, kick it into full-screen, turn up the sound, and enjoy today's subject, the 2016 Chevrolet Volt. Oh, and if you'd like more Beauty-Roll, click here to see the back catalog.

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: