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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 under fire from safety advocates over braking problem caused by recall fix

Safety experts are lambasting General Motors over what they say is the automaker’s slow notification of owners of certain 2019 sedans and trucks that a recall fix could cause power braking to fail and increase the risk of a crash, the Detroit Free Press reports.  GMÂ’s original recall in December targeted about 550,000 Cadillac CT6 sedans and Chevrolet Silverado 1500 and GMC Sierra 1500 pickups, all from the 2019 model year, over potentially defective electronic stability control and antilock brakes. In that case, GM said the errors would not show up as a diagnostic warning on the instrument cluster. But after GM had done recall work on 162,000 vehicles, about 1,700 owner have complained that their power brakes didnÂ’t work after they had the recall done and then used the OnStar app to start their vehicle. GM then issued a supplemental fix for customers whoÂ’d already had their vehicles serviced. In this case, a diagnostic warning should illuminate saying either “Service Brake Assist” or “Service ECS,” which GM says is a signal that a customer should not drive the vehicle and instead call their dealer, which will tow the vehicle and have it repaired. Safety advocates say the automaker hasnÂ’t gone far enough to protect customers. “The fact that you could potentially start a vehicle and not have brakes is a pretty risky proposition,” Sean Kane, president of the Safety Research and Strategies, which works on auto issues for plaintiffs and governmental organizations, told the Freep. “The fact that they wouldnÂ’t notify owners (sooner) is pretty stunning.” GM told the Freep it was required to notify the National Highway Traffic Safety Administration and file paperwork before it notified customers about the original recall, which was made Dec. 12. It then had to investigate and resolve the problem created by its original recall fix before alerting customers. GMÂ’s call center and dealers are contacting the remaining 900 customers who havenÂ’t yet had the update made to the original recall repair. GM also hired a vendor to send recall letters to the 550,000 customers affected by the original recall notifying them about the update. There are no known injuries or deaths related to the problem. Read the Freep story here.

2020 Cadillac CT5 loses the fake scoop

Well folks, the inevitable has happened. The 2020 Cadillac CT5 luxury sports sedan prototype has shed its hood scoop. Yes, we're as disappointed as you are that instead of being outrageous and brash, Cadillac is still going to try to be classy, understated and luxurious when it comes to its mainline models. And yes, we're being sarcastic here ... but there's a part of us that would kind of like to see the scoop survive. Anyway, the good news is that the scoop is only one of a few bits of fake bodywork and camouflage that the CT5 has shed. As such, we get our best look yet at the new Cadillac sedan, and it looks pretty good. The grille is very wide and not nearly as tall as the prominent prows of current Cadillacs. It actually doesn't even look as tall as the grille of the Escala concept that inspired the CT5's design. The profile of the CT5 isn't too radically different from existing Caddies, with a long hood and a short trunk. It is still a conventional sedan, though, and not a sedan-like hatchback like the Kia Stinger and Audi A5 Sportback and A7. This is evident by the open trunk lid our spy photographer caught. The taillights also continue to be slim and vertical, though we can't quite tell if they will have a horizontal elements at the bottom like on the XTS and XT4. The car also has very bold and thick angular exhaust tips. We expect the CT5 will go into production in 2019 as a 2020 model, and it will likely take the place of both the CTS and ATS, but not be much smaller than the CTS. It will likely use versions of existing Cadillac engines including the 2.0-liter turbo four-cylinder, naturally aspirated 3.6-liter V6, and twin-turbo 3.0-liter V6. We wouldn't rule out the 4.2-liter twin-turbo V8 for a potential CT5-V in the future. Related Video: