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How Cadillac improved power output in 2016 ELR by 25 percent

Earlier this year, Cadillac announced that the 2016 ELR would come with a big price drop and a powertrain that packs 25 percent more power output. That's a lot more oomph, but it didn't sound like the Caddy engineers made any major changes to the engine or motors. So, what happened? Let's refresh our memories with the numeric details. The 2016 car is 1.5 seconds quicker to 60 miles per hour than the 2014 model (there was no 2015), down to 6.4 seconds. The 2014 put out 295 pound-feet of torque. For 2016, it will be 373 lb-ft. The specific breakdown of the various components in the powertrain has not been disclosed, but from what we can tell, the two electric motors and the 1.4-liter inline-four engine in the new ELR are not that much different than those in the old one. Sam Abuelsamid, senior research analyst at Navigant Research (and former writer here at Autoblog) said that any of the unspecified upgrades would be difficult to tell on a part-by-part basis, but the overall effect will be noticeable. "The changes to the ELR as I understand them are analogous to getting more performance out of a 1965 Mustang with the entry version of the 289 cubic-inch V8. You can replace the carburetor with a larger version that enables more air and fuel to flow into the engine, thus producing more power. The basic engine hasn't changed, but power capability is being unleashed by feeding it more." "Cadillac has changed components in the power electronics to enable more current flow into the motor and thus produce more torque. When you do this in the Mustang, you probably need to replace the rear axle gears and use a beefier clutch to transmit the power to the wheels. Similarly, the ELR probably has some upgraded clutches, bearings, and gears to withstand the increased total output." Cadillac spokesperson David Caldwell told AutoblogGreen in an email that the new ELR does indeed have more than just new lines of code. "One could not 'reflash' a previous ELR to get the performance of a 2016," Caldwell said. "If one only changed software you would not get the performance upgrade fully, as the 2016 creates higher current, more power. So these have been upgraded physically – hardware.

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.

Autoweek divulges details on Presidential limo

Ever since the latest presidential limousine, also known as The Beast, debuted in 2009, we've wondered what's underneath that black Cadillac body. We already know a few details, like the fact it isn't a Cadillac at all, but a very heavy duty truck chassis from General Motors with a body that resembles a super-sized Caddy. Autoweek, however, has managed to extract new details from veteran Secret Service agents about the closely guarded presidential limo. Their methods, of course, are classified.
Designed to be a rolling office, bunker and escape pod all in one, the current presidential limo is far different from previous presidential state cars, which were heavily modified production vehicles. As we would expect, The Beast uses thick, military-grade body armor (eight inches on the doors), an armored fuel tank, special run-flat tires with Kevlar lining, an encrypted satellite phone, a fully sealed cabin with its own oxygen supply and a trunk full of weapons and medical equipment that includes a supply of the President's blood type (in case the car gets cut off from the ambulance that's always present in the President's motorcade).
The Beast also comes with a Halon fire-suppression system, night vision and is powered by a V8 engine, which we already knew runs on gas and not diesel, that returns an EPA-unfriendly estimated 3.7 miles per gallon. The Secret Service operates a fleet of 12 limos and each Beast costs $1.5 million. Lastly, AW estimates that the 18-foot-long state car weighs 15,000 pounds, and each Secret Service agent that drives the car must be specially trained to maneuver such a massive vehicle.