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Cadillac CT6 PHEV battery shape a big departure for GM's plug-in hybrid tech

Anyone with any familiarity with the electric powertrain details for the two General Motors plug-in hybrids will have noticed that the information we have about the newly announced Cadillac CT6 plug-in hybrid has a lot of numbers in common with the Chevy Volt and the Cadillac ELR, like the 18.4-kWh lithium-ion battery pack and an expected all-electric range of 37 miles. We also noticed that the announcement calls the plug-in CT6 hybrid an actual plug-in hybrid and not an "extended range electric vehicle (EREV)," which is what GM calls the Volt and the ELR. This, of course, means we needed to ask GM some questions. Donny Nordlicht from Cadillac communications told AutoblogGreen that while the Volt and CT6 batteries are both 18.4-kWh, the shape is completely different. In the Volt/ELR, the battery is T-shaped (see it here). The CT6 has four seats, with a tunnel running between the two in the rear, as you can see here, but the battery in the CT6 PHEV is "a cube-shaped pack, which is between rear seats and the trunk," Nordlicht said. "There is no pass through." GM has not yet released any technical schematics about this pack, but Nordlicht said that, "The CT6's advanced mixed-material platform was designed to accommodate the PHEV system by design so that it minimally intrudes on the cabin space." It also means that the CT6 can be ordered as an optional PHEV, while the Volt and ELR were purpose-built plug-ins. GM is also distinguishing between the EREV and PHEV powertrains in its vehicles from this point forward. "We are not discarding the EREV language," Nordlicht said. "The CT6 utilizes a two-motor system mated to a 2.0T 4-cylinder engine, which is an all-new system to Cadillac." We assume that the PHEV packs will use li-ion cells from LG Chem, just like the EREVs do, but Nordlicht did not answer our question on that point. As for other details about the CT6 PHEV – like production, full dimension, and pricing – we will just have to wait until closer to when the vehicle launches for those. Related Video:

2017 Cadillac XT5 First Drive

Thousands of feet above the Pacific Ocean, the winding roads that lead to the summit of Palomar Mountain turn from undulating curves to tight, blind, hairpin bends. Most drivers along this route are looking for a chance to exploit the limits of their cars' handling as much as one can on public roads, while taking in the bucolic views and endless blue skies. Up here, taking the thrilling curves at high speed is best left for drivers of performance cars who have platinum health insurance, lest the possibility of rolling a vertical mile toward Hellhole Canyon Preserve (we are not making this up) is not a deterrent. How different the experience is when you've chosen to climb the mountain in the 2017 Cadillac XT5, the crossover that replaces the SRX in a growing lineup of refined and redefined XT-named utility vehicles. An instant reminder that this SUV is not a Lotus comes as we enter a corner with a smidgen too much gusto, the tires begin to claw for traction, and the seatbelts tighten with the grip of sudden death. A quick tap of the brakes releases the belts, but not before a bead of sweat forms on the forehead. The overwhelming feeling is one of being unsure if this exercise is out of the XT5's comfort zone, despite Cadillac's goal of hitting the high-achieving sweet spot of the sport-luxury crossover segment. You'll know that an XT5 isn't an SRX when you first see one, although the differences are harder to tell when the two are parked side by side. The XT5 is the second Cadillac model to arrive since the brand learned to speak with a New York accent (albeit an affected Soho dialect) and it's a key pillar to the brand's chances at worldwide success. In 2015, the final year of sales for the five-year-old SRX, Cadillac managed to sell almost 100,000 of them around the world – no small feat for a model about to be replaced, and proof of the crossover's relative freshness and its popularity in export markets like China. Like the SRX that precedes it, the XT5 will be available with either front- or all-wheel drive (a $2,645 option), but that's one of few commonalities with the outgoing model. A new, lighter chassis helps the XT5 shed about 300 pounds, although Cadillac favors high-strength steel for bodywork and leaves aluminum for the engine and interior trim. In line with the revised brand guidelines for naming, SRX evolved into XT5, leaving room for larger and smaller utility vehicles to eventually join the lineup.

Cadillac recalls ELR coupe over stability control problems

Cadillac is recalling about 656 2014 ELR models made between September 26, 2013 and February 14, 2014, because of a fault with the electronic stability control system. On cars without adaptive cruise control, it's possible that diagnostics could prevent the system from telling the driver if ESC is on or off.
Cadillac has a software fix ready and repairs begin on April 17. Alan Adler, General Motors' recall and legal spokesperson, tells Autoblog that only about 55 of the affected cars are in the hands of owners. The rest are either on dealer lots or still at the factory. There have been no reported injuries or crashes caused by the fault.
The correction for the stability control system involves a software recalibration of the electronic brake control module that takes around 20 minutes to perform. While they use the same platform, the Chevrolet Volt isn't involved in this recall because it "uses a different a brake control module," said Adler.