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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 intends to offer semi-autonomous vehicles by 2020

Prepare for a few years of technological saber-rattling, as the world's automakers begin pushing to bring self-driving cars to market. Earlier this week, Nissan announced that it aims to offer autonomous vehicles by 2020, while Google, BMW and several other marks are working on similar efforts.
General Motors is doing things differently, though. Rather than push for a fully autonomous car, it's continuing to refine its semi-autonomous Super Cruise, a product that we tested in April 2012 and that will eventually see use on some Cadillacs before trickling down to the rest of the General Motors family. Super Cruise, which is undergoing testing in the Cadillac SRX, doesn't take complete control out of the driver's hands. Rather, under a very specific set of circumstances on the freeway, it will marry the capabilities of things like lane departure warning and adaptive cruise control to allow the driver to take their hands off the wheel. All of which sounds a lot like the system Mercedes-Benz is launching on the 2014 S-Class.
The system is still in development, according to John Capp, GM's director of electrical controls and active safety technology. Now that that the biggest hurdle, steering control, has been cleared, GM's engineers can focus on things like teaching the system to adapt to differing road conditions and visibility levels. As we reported in 2012, Super Cruise is still befuddled in low-visibility situations or when road markings aren't particularly clear.

Cool car technology is cool until it breaks

Ah, technology – the beautiful date that impresses all your friends but costs you a fortune to keep happy, up-to-date, and working. Automotive News puts some numbers to the economic toll we're paying to jockey this technological Trojan horse, an analysis it sums up with "Technology is great - until you have to replace it." Back in 2000, for instance, you could replace a Cadillac Escalade taillight lens for $56.08, or replace the entire unit for $220.49. Crack the rear lens on your 2015 Escalade and you have to buy a new unit for $795 - there's no such thing as just replacing a lens anymore. What about headlights? It was $210 for an Escalade headlight in 2000, it's $1,650 for the current unit (pictured). This is nothing we didn't know, these are just hard numbers to demonstrate it. Edmunds recently provided the same with its sledgehammer-bashing of the 2015 Ford F-150, Tesla Model S buyers have been shrieking about repair costs to their electric sedan's all-aluminum bodywork, and used-car sites are full of articles about which expensive-to-repair features to steer clear of if you want to avoid big repair bills. Those expensive bits increase the price of a car - Kelley Blue Book says the average price of a car is now more than $33,000 - and that raises rates for repairs and insurance. This comes in spite of some carmakers that have been collaborating with insurance companies and repair shops at the design stage in order to engineer parts that are easier and less expensive to replace. But the tech can have its cost-saving benefits: a 2011 study by the Highway Loss Data Institute found that Volvos fitted with that company's City Safety feature "filed 27 percent fewer property-damage liability claims" than luxury SUVs without it, and just last month the Insurance Institute for Highway Safety called adaptive headlights one of the top four crash-preventing technologies on cars today (after coming out against them in 2006). So yes, the technology costs a mint when it needs to be fixed - but being able to avoid an accident in the first place might make it worth it. News Source: Automotive News - sub. req.Image Credit: Copyright 2015 AOL Cadillac Car Buying Used Car Buying Auto Repair Insurance Maintenance Safety Technology Luxury replacement parts