2004 Cadillac Srx V8 W/6cd & Panorama Roof on 2040-cars

Auto blog

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 admits goal of 500,000 EVs by 2017 won't be met

After a little over four years of Chevy Volt sales, General Motors has a better handle on how many people it expects will buy cars with plugs. And it's less than the company thought back in 2012, when then-senior vice president of global product development, Mary Barra, said that GM expected to sell 500,000 "vehicles with electrification" by 2017. In a sustainability report released this week, GM says that half-million vehicle target will not be met but that it still, "believes the future is electric." In the report, GM says that, "For our commitment to electrification, our forecasted outlook currently projects us, along with the broader automotive industry, falling short of expectations for 2017. ... We continue to aspire to our stated goal." GM's electric lineup includes the Volt, the recently popular Spark EV, the slow-selling Cadillac ELR and upcoming Malibu Hybrid, CT6 plug-in hybrid and eAssist technology in the Buick LaCrosse and Regal. GM says it has 180,834 electrified vehicles on the road in the US today. In 2013, it had 153,034; 95,578 in 2012, and 39,843 in 2011. The company's next big plug-in vehicle will be the second-gen Chevy Volt, which is coming to market later this year, followed by the 200-mile Bolt EV coming, we think, in 2017. GM Employees on Mission to Transform Transportation Sustainability report outlines vehicle and manufacturing progress; sets new targets 2015-05-07 DETROIT – General Motors' just-released sustainability report chronicles efforts by the company's 216,000 employees to live out GM's newly defined purpose and values by earning customer loyalty, applying meaningful technology advances and improving the communities where it does business. These actions – led by CEO Mary Barra – further drive sustainability into the company's culture through building safer and smarter vehicles with less environmental impact. "GM will take a leading role in the auto industry's transformation as it undergoes an unprecedented period of change," said Bob Ferguson, senior vice president, GM Global Public Policy. "From GM's labs to its assembly lines, our people are driving the world to a better place through improved mobility." The company believes the future is electric, with billions of investment to support an all-in-house approach to the development and manufacturing of electrified vehicles. It now counts 180,834 on the road in the U.S – up from 153,034 in 2013.

Hotter Cadillac CT5-V and CT4-V spy photos, video hint at engines

Cadillac has some extra spicy V cars on the way, and this latest batch of spy photos and videos is more revealing than anything we’ve seen yet. We donÂ’t yet know the final name of these Cadillac V cars, but they are supposed to be the true replacements for the CTS-V and ATS-V. The CT4-V and CT5-V we saw previously are only mild performance variants of the regular sedans. Diving into the video seems more important than the photos on this one. Our spy shooters managed to capture great audio that allows us to take some guesses at whatÂ’s under the hood of these cars. The CT5-Vs in black and white camouflage sound like they have some gnarly V8s under their skin. We canÂ’t pick up a supercharger whine or a turbocharger whistling away, but weÂ’re not going to rule out the former. The CTS-V has a 6.2-liter supercharged V8 that makes 640 horsepower, and it wouldnÂ’t be out of the question to see this car rival it in power. We still havenÂ’t heard the CT6-V at full song, but the engine weÂ’re listening to here just doesnÂ’t strike us as the sound of a 4.2-liter twin-turbo V8 in that car. It sounds a lot more guttural, like the LT4 or LT5 V8 engines. Also, none of the CT5-Vs here sounded like they had manual transmissions. CT4-V spied View 40 Photos Moving to the CT4-V in the blue getup, it sounds a lot like a V6 is under the hood. This also makes sense when we consider that the ATS-V had a 3.6-liter twin-turbo V6 itself. Most important of all to note, is the evidence of a manual transmission. In one of the acceleration clips, weÂ’re able to hear the tell-tale sound of a driver pausing in acceleration for a split second to change gears. This is great news, folks. The manual is looking alive and well in the Cadillac sedan to us. Another clip of a CT4-V in black and white camouflage makes it sound like that particular model is equipped with an automatic transmission, indicating that Cadillac may be offering both transmission options on the new car. As for the rest of the photos, go ahead and take in all the close-up details. We got photos of the tires on the CT4-V, showing 255/35/ZR18s up front and 275/35/ZR18s in back. Michelin Pilot Sport 4 S rubber is used, telling us this thing is going to have a ton of grip. There are more vents, wider fenders and more aggressive styling throughout on these cars compared to the lower-performance V cars. Now that weÂ’re looking at them from much closer than before, the package is looking even more comprehensive.