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2017 Cadillac CT6 Plug-In Hybrid Drivers' Notes Review | Seamlessly green

In many ways, the Cadillac CT6 Plug-in Hybrid is the most interesting car the brand sells. Despite having a turbocharged four-cylinder hybrid powertrain, it makes the most torque of any CT6, even the twin-turbocharged V6 model. It also has a claimed electric range of 31 miles and can still manage a combined fuel economy of 26 mpg with just the gas engine. Even its origin is interesting, since its final assembly point is China. To cap things off, it's also the second most expensive CT6 in the range. To find out if the CT6 is worth that money, and has more to offer than fun facts, we spent some time behind the wheel. Editor-in-Chief Greg Migliore: I achieved 34.1 miles per gallon for my roughly 14-mile roundtrip in the CT6 hybrid. This sedan is a rolling example of where luxury is heading in the near term: Existing models souped up with hybrid tech, and the green features will go along way toward keeping big sedans like this relevant. It's a smart play for Cadillac to add a product like this. Otherwise, it's a fairly standard-issue CT6, which is a solid car. The flashy head- and taillights look great. The design is angled, creased and nicely proportioned. The interior is comfortable and roomy. It's a nice car. Cadillac invested a lot in the CT6, and it shows. Rumors have long swirled that the brand will add a larger flagship, though in this climate, that's hard to envision. For now, the CT6 does the job as Cadillac's standard bearer. Associate Editor Joel Stocksdale: Of all the different CT6 variants available, the CT6 PHEV is the one I would pick for myself. Why? Because the hybrid powertrain finally delivers on the quiet, refined driving experience I want from a flagship luxury sedan. I was a bit surprised by this, too, since the gas engine under the hood is the 2.0-liter four-cylinder used elsewhere, which isn't the smoothest thing in the world. But assist from the electric motor helps keep the four-cylinder from having to wind up too much to move the big Caddy, and when the gas engine does rev hard, it's well muffled by whatever insulation is in the car. Besides aural refinement, the power delivery is oil-on-ice slick. The blending of electric and gas power is seamless. There's no waiting on the turbo to spool up, and there's no loss of power at higher rpms with the electric motor. They work in perfect harmony providing excellent low-down grunt and solid upper-end power. The transmission is super smooth, too allowing for happy wafting wherever you go.

2020 Cadillac CT6 losing the 3.0-liter TT V6?

In April we learned Cadillac would no longer offer the 2.0-liter four-cylinder on the CT6. The same day we heard the news, the CT6 configurator showed that engine option gone, leaving three engines on the menu. That menu could lose another option come 2020, according to a report in AutoVerdict. The site says it got an order guide for the 2020 CT6, and the 3.0-liter twin-turbo V6 won't make it to the new year. That engine was once the top-tier choice, since eclipsed by the detuned 4.2-liter twin-turbo Blackwing V8 imminently available on the Platinum trim. AutoVerdict also read in the order guide that the horsepower figures haven't been finalized for next year's model. As it stands, the entry-level 3.6-liter six-cylinder makes 335 horsepower and 284 pound-feet of torque, the 3.0-liter twin-turbo V6 produces 404 hp and 400 lb-ft, and the 4.2-liter V8 ginning up 500 hp and 574 lb-ft when it arrives. Retiring the middle option ostensibly puts a big ol' gap in output and pricing between the two models left. Right now $24,200 separates the entry-level Premium Luxury from the Platinum. However, since the present Platinum uses the 3.0-liter, it's safe to guess that the 4.2-liter V8 will cost more, creating a larger gap. The Sport model in between uses the 3.0-liter, too. Perhaps that goes away, or maybe it stays and gets further cosmetic upgrades to give it more edge and a higher price. Another change coming to the 2020 CT6 is its induction into Cadillac's metric-unit torque-based badging system. This, remember, converts pound-foot torque into Newton-meters, then rounds up to the nearest 50. That means the 3.0-liter V6 will wear a 400 badge, the 4.2-liter V8 gets an 800T badge - the T standing for turbo. The year's been full of engine rationalizations at General Motors. Theories about the CT6 dropping the 2.0-liter figured it might have been about making space above the CT5, or guaranteeing supply for other GM models that use the engine, like the Cadillac XT4. The folks at AutoVerdict suspect the 3.0-liter TTV6 could be making the move to the CT5, and to the hot-headed CT4-V we'll be getting a look at come the end of this month. Related Video:

Cadillac boss: We will have diesels

Johan de Nysschen doesn't usually mince words about his plans, and the Cadillac boss says that diesel-fueled models are on the horizon for the luxury brand in the US by the early 2020s. The four- and six-cylinder engines under development would launch first in Europe about 2019. "We will definitely bring them to the US," de Nysschen said during a press event, according to Automotive News. Unfortunately, the Cadillac president isn't saying which models would get the diesels, yet. This plan has been in the works for at least several months, and Cadillac made mention of the two oil-burners earlier this year during the unveiling of its new V6 engine. De Nysschen broached the possibility during an interview at the 2015 Detroit Auto Show, and he also referred to the inclusion of hybrids and plug-ins into the company's lineup at that time. Last year, a rumor suggested the addition of a V6 turbodiesel into the Escalade range. There were also rumblings of an oil-burning ATS during that model's launch. While Cadillac is no stranger to offering diesels in Europe, the decision to develop these new ones could come at an inopportune time. Governments there are rapidly moving against the fuel in favor of electrification. Tighter emissions regulations could also be on the way for the EU. Related Video: