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How GM's grueling 24-hour test gets the kinks out of its performance cars

One of the biggest challenges automakers face when designing a high-performance car is making sure that it is both fast and reliable. For General Motors, any car that might be taken to the track by its owner - like the Corvette, Camaro Z/28 (shown above) and the Cadillac CTS-V, for example - undergoes a rigorous and strenuous 24-hour test by engineers at the Milford Proving Grounds, as pointed out by Car and Driver.
We've posted on this topic in the past - on a video showing the Camaro ZL1 being brutalized, for instance - but this article gives a more in-depth look at what actually happens behind the scenes... including what that poor ZL1 went through. Though the test isn't for 24 hours straight, the cars are pushed as hard as possible by some of GM's best drivers with only the brakes and tires replaced frequently.
We don't want to ruin the fun for you, but it is an interesting article that tells just some of what GM does to develop its sports cars. Check out the full article over at Car and Driver for the rest of the story.

GM considering new powertrain options for large SUVs

Aside from the new General Motors offerings, there's not a whole lot of action going on in the fullsize SUV segment. That doesn't seem to be stopping GM from pushing the envelope in the market as Automotive News is reporting that the automaker is looking to introduce some new powertrain options into the Chevy Tahoe (and Suburban), GMC Yukon (and Yukon XL) and the Cadillac Escalade - all have been redesigned for the 2015 model year.
Now, we already know that GM and Ford are collaborating on nine- and ten-speed transmissions for a broad range of applications (including the big SUVs), but this new report says that GM is also considering other options as a way to one-up the competition and, of course, to optimize fuel economy. AN quotes Jeff Luke, executive chief engineer for GM trucks, as saying that "interesting powertrain technologies" are coming including a return of a hybrid SUV and possibly even a diesel engine. Although it sounds like the latter could come down to how customers respond to the 2014 Jeep Grand Cherokee EcoDiesel.

Shatner's Rivet motorcycle to enter limited production with CTS-V engine [w/video]

William Shatner has entertained the world for decades, from playing Captain Kirk on Star Trek to covering songs like Rocket Man and Common People. Now in his 80s, Billy Shatz has embarked on one of his weirdest projects yet: helping to design the wild Rivet One trike with motorcycle fabrication company American Wrench. Now, you can order one too with power as crazy as the three-wheeler's design. We last saw the Rivet One's aluminum body with the styling like a menacing, art-deco easy chair a few months ago, but now Shatner has started talking about the trike's powerplant, which is based around the heart of a Cadillac CTS-V. "It's a beast with advanced guts. It's powered by an all-aluminum, computer-controlled, supercharged and intercooled V8 engine – producing over 500 HP," Shatner said to Gizmag. Keep an eye out because Shatner intends to captain the Rivet One from Chicago to Los Angeles later this year. Also, if you want a ride like Captain James T. Kirk, the company is taking requests for the trike, made on a build-to-order basis after completing Shatner's job, according to Gizmag. Prices aren't announced yet but expect the number to be as out of this world as a voyage of the Enterprise. The video below provides a further look at the Rivet One's unconventional design. Superheroes Wanted - A Look At The Machine from Rivet on Vimeo. News Source: Gizmag, Rivet via VimeoImage Credit: Rivet Motors Celebrities Design/Style Cadillac Motorcycle Performance trike William Shatner american wrench