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Cadillac CT6 uses aluminum to save 200 pounds

In Cadillac's recently launched ad campaign, the luxury brand's tagline is "Dare Greatly," and the two words suggest a brand willing to take big swings, even if they don't always connect. From what the company is promising, the forthcoming CT6 seems like an embodiment of that new motto. With an eventual range of turbocharged engines, reportedly including a turbo V8, a possible plug-in hybrid and streaming rearview mirror, the sedan is certainly pitched as tech showcase. Of course, extensive use of aluminum is practically mandatory to play in the luxury field these days, and Caddy is proving its latest creation can do that too. Despite the weighty appearance of the sedan's squared-off exterior, 64 percent of the CT6 is aluminum, including the entire exterior. Caddy claims that using so much of the lightweight metal sheds 198 pounds off the scales compared to using conventional steel. There still is some steel in the CT6; although it's predominately the high-strength variety. The engineers use the heavier metal for portions around the cabin and B-pillar for added safety. Cadillac also claims using steel "close-out panels" on lower portions of the sedan make the cabin quieter without needing as much sound deadening. The buildup to the CT6's public unveiling has been a long time coming after Cadillac pinned the flagship (for now) sedan's debut at the New York Auto Show nearly a year ago. When the sheet finally comes off on March 31, we get the first good idea about just how great Caddy's latest act of daring really is. Cadillac CT6 Elevates the Science of Mass Efficiency 2015-03-13 Technology DETROIT – Cadillac will use an advanced mixed-material approach for the lightweight body structure of the upcoming CT6 range-topping sedan. The structure is aluminum intensive, but the new Cadillac also includes 13 different materials customized for each area of the car to simultaneously advance driving dynamics, fuel economy and cabin quietness. The CT6 will debut March 31 at the New York International Auto Show and go into production late this year at General Motors' Detroit-Hamtramck assembly plant. "This is the rocket science of automobile construction and manufacturing today," said Cadillac President Johan de Nysschen.

GM Super Cruise is evolving into Ultra Cruise, for hands-off city driving

GM has a "big team" working on an advanced version of its hands-free driving assistance system, Super Cruise, that will expand its capability beyond highways and apply it to city streets, the automaker's vice president of global product development Doug Parks said Tuesday. GM is also continuing to improve its existing Super Cruise product, Parks said during a webcasted interview at Citi’s 2020 Car of the Future Symposium. "As we continue to ratchet up Super Cruise, we continue to add capability and not just highway roads," Parks said, adding that a separate team is working on the hands-free city driving product known internally as "Ultra Cruise." "We're trying to take that same capability off the highway," he said. "Ultra cruise would be all of the Super Cruise plus the neighborhoods, city streets and subdivisions. So Ultra Cruise's domain would be  essentially all driving, all the time." Parks was quick to add that this would not be autonomous driving. Advanced driving assistance systems have become more capable, but they still require a human driver to take control and to be paying attention. "What we're not saying is that Ultra Cruise will be fully autonomous 100% of the time, although that could be one of the end games," Parks said. Parks didn't provide a timeline for when Ultra Cruise might be available. A GM spokesperson said in a statement after his interview that the company continues to expand its hands-free driver assistance system technology across its vehicle portfolio and has "teams looking at how we can expand the capabilities to more scenarios." GM said it "does not have a name or anything specific to announce today, but stay tuned." This new Ultra Cruise feature would put it in competition with Tesla's Autopilot advanced driving system, which is largely viewed as the most capable on the market today. Tesla's "full self-driving" package, a more capable version of Autopilot, can now identify stop signs and traffic lights and automatically slows the car to a stop on approach. This feature is still considered to be in beta. GM's Super Cruise uses a combination of lidar map data, high-precision GPS, cameras and radar sensors, as well as a driver attention system, which monitors the person behind the wheel to ensure theyÂ’re paying attention. Unlike TeslaÂ’s Autopilot driver assistance system, users of Super Cruise do not need to have their hands on the wheel. However, their eyes must remain directed straight ahead.

Cadillac considering more radical ATS-V

Cadillac is stepping up its performance game with the launch of the new ATS-V and CTS-V, but it's not about to rest on the laurels it removed from its own badge. While it's tipped to launch additional V models in the future, the latest word is Caddy could also come out with an even more extreme version of the ATS-V in the near future. According to Car and Driver, the prospect is on the table: "We might have something down the road that is a little bit more aggressive," chief engineer Dave Leone said, while another source pegged its potential arrival for 2017. It's too early to say what would constitute the more extreme model. The magazine points toward the Mercedes-AMG Black Series as an example. Jaguar took a similarly extreme approach with the XKR-S GT, as BMW has with the M3 GTS. As it is, the ATS-V is offered in both coupe and sedan variants with a 3.6-liter twin-turbo V6 producing 464 horsepower channeled to the rear wheels through a six-speed manual. Cadillac reportedly considered employing a dual-clutch transmission and all-wheel drive, but went the old-school route to avoid excess weight and (no doubt) cost.