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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:

Weekly Recap: Cadillac's crossover blitz hinges on the 2017 XT5

Cadillac's aggressive new cadence of crossovers begins next spring with the arrival of the 2017 XT5, the first of four new utility vehicles that Cadillac will unleash in a bid to win more customers and revitalize its image. The XT5 replaces the aging SRX, and it's the first SUV to use the brand's new naming scheme (cars will use the corresponding CT prefix). Billed as the cornerstone of Cadillac's remade crossover lineup, the XT5 will join showrooms right after Caddy's new flagship, the CT6 sedan. It will be on display next week at the Los Angeles auto show after first appearing this month at the Dubai motor show. "It's pivotal to our ongoing growth, which is why we've developed XT5 from the inside out to provide customers more space, more technology, more luxury, and more efficiency," Cadillac president Johan de Nysschen said in a statement. "Pivotal" is almost understating the XT5 and the red-hot midsize crossover segment. The SRX is Cadillac's top seller in 2015, posting a 25-percent increase and its 56,732 units (up 25 percent) are more than one third of the brand's 141,090 sales this year. Yes, the totals have been partially incentive-fueled, and Cadillac put an average of $7,225 on the SRX's hood in October, according to TrueCar data. Still, it's an impressive performance for any vehicle, especially one that's had few major changes since the new generation launched as a 2010 model. "The SRX has been selling very well, given how late in the lifecycle it is," AutoPacific product analysis manager Dave Sullivan told Autoblog. It outsold the all-new MKX last month and really only trails the Lexus RX. This is the volume model for Cadillac and dealers need this to be a grand slam, not just a home run." Cadillac is adamant the XT5 isn't an SRX re-skin. It has a new chassis, more interior room, and adds features like Apple CarPlay and Android Auto. Thanks to a new structure, the XT5 sheds 278 pounds compared with its predecessor, which should improve fuel economy and driving character. The crossover uses General Motors' latest 3.6-liter V6 rated at 310 horsepower and 270 pound-feet of torque, and it is fortified with variable-valve timing, cylinder-deactivation, and stop-start features. The V6 will team with an eight-speed automatic transmission and a twin-clutch all-wheel-drive system than can summon all of the torque distribution to the front or rear axles. Cadillac will also sell a 2.0-liter turbo four-cylinder model in China.

Cadillac planning its own engines, halo cars

Cadillac is in the midst of some big changes. It's got a new chief executive. It's taking some distance from parent company General Motors and moving to a new headquarters in New York. And it's instituting a new naming scheme that will allow not only for a more clear progression in its lineup, but also for more models. But that's not the end of the story. Not by a long shot.
Speaking with Automobile magazine, Cadillac's new president Johan de Nysschen revealed his intention to develop several new models and powertrains. For starters, he does not want Cadillac to continue borrowing engines from the GM parts bin, but intends to develop a new range of engines specifically for the luxury automaker. The program will likely start with smaller-capacity engines but eventually lead to new V8s as well, taking the place of the long-serving Northstar engine that finally ended its lifespan a few years ago after some two decades of production. Along with other technologies, de Nysschen envisions possibly sharing these powertrains with other GM divisions, but developing them first and foremost for Cadillac.
The bigger question, however, is where those engines would go, and de Nysschen had some thoughts to share on that front as well. For starters, the former Infiniti and Audi exec sees room for an even bigger sedan above the upcoming new CT6 that will cap the current range. Maybe even two of them. But that's not all. Johan wants to see Cadillac get (back) into the sports car game with a new halo model or two - something it hasn't really done since the Corvette-based XLR roadster. A pair of new crossovers are also said to be in the works, flanking the SRX on both sides with smaller and larger models.