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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.

Cadillac says it made CUE infotainment a lot better

We've never been huge fans of CUE, the Cadillac User Experience infotainment interface. It's been around a few years now, and the best thing we can say for it is that it now supports Android Auto and Apple CarPlay, making it easy enough to replace most of the interface with a familiar smartphone-based system. Now Cadillac has made some big upgrades to the system that should address at least some of our concerns. First and foremost, the system is claimed to be more intuitive, with a more logical interface design. Cadillac has added a Summary View that gives an overview of the climate, media, navigation, and phone all at the same time. The system will also be able to receive over-the-air updates, allowing Cadillac to make improvements more often and push them out to owners' cars, mush like Tesla and other automakers already do. The 4G LTE connection will also be used to connect the car with the cloud, where drivers can store and modify their own personalized set of settings. This My Driver Preferences profile will include things like contacts, navigation preferences, and recent destinations, and will also follow them from one car equipped with the system to another. That should come in handy for anyone subscribing to the $1,500-a-month Book by Cadillac vehicle subscription service, which allows participants to swap between cars when they choose. The cloud connection will also carry over to a new available navigation function, which Cadillac claims has a more intuitive, smartphone-like interface. It uses its data connection to provide current destination info and is supposed to learn a driver's habits, such as their preferred routes and frequent destinations, which the system will then attempt to offer up predictively – so the car should be able to know that you're heading home at 5:00. Additional apps for the system will be available through Cadillac's new Collection app store. And it's still compatible with Android Auto and Apple CarPlay. One sore spot that appears to have been improved is the digital gauge package, although Cadillac hasn't offered details on that extension of the system. The current iteration's ability to over-customize the interface (our personal favorite is the option to display a total of four speedometers between the head-up display and the gauge screen; see video below) and unintuitive controls make it difficult to use and learn, while the simulated gauges don't look particularly realistic.

GM To Offer Car That Will Almost Drive Itself

Cars that can talk to each other and almost drive themselves at freeway speeds are just two years away from the showroom, according to General Motors executives. The company announced Sunday that the semi-autonomous system for freeways will be an option on an unidentified new 2017 Cadillac that goes on sale in the summer of 2016. In addition, another 2017 Cadillac, the CTS, will be equipped with radio transmitters and receivers that will let it communicate with other cars, sharing data such as location, speed and whether the driver is applying the brakes. The announcements were made Sunday at the opening of the Intelligent Transportation Society World Congress being held in Detroit this week. They are part of a barrage of similar declarations that are expected from other companies throughout the week as the industry shows off progress toward self-driving and safer cars. The freeway system, dubbed "Super Cruise," uses cameras and radar to keep the car in the center of a lane and also stay a safe distance behind cars in front of it. The system will bring the car to a complete stop if traffic halts without driver action, and it can keep the car going in stop-and-go traffic. Other automakers, such as Mercedes-Benz, now offer similar systems that work at low speeds, but GM says it's the first to announce a system that operates at highway speeds. Others could have freeway systems in two years, though. "If the mood strikes you on the high-speed road from Barstow, California, to Las Vegas, you can take a break from the wheel and pedals and let the car do the work," CEO Mary Barra said in remarks prepared for the conference's keynote address on Sunday. But GM said the car still won't drive itself, and the company is working on a system to monitor drivers to make sure they're still paying attention. Details of that system weren't released. "Sensing technology is not yet to the point where the driver can check out," said John Capp, GM's director of global safety strategy. "This is a level of automation that can be done, that is feasible." The new Cadillac that will get Super Cruise hasn't been officially announced yet. But executives have hinted that GM will build a big rear-drive Caddy to lead its lineup in the coming years. Also Sunday, the Michigan Department of Transportation announced that it will partner with GM, Ford Motor Co.