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Cadillac CT6 loses the entry-level 2.0-liter turbo four-cylinder

General Motors continues its engine rationalization among product lines. A few days after Chevrolet dropped the old-generation LTG 2.0-liter turbocharged four-cylinder from the Traverse, Cadillac has jettisoned the new-gen LSY 2.0-liter turbo four from the CT6 range. Given a look at the dealer ordering system, Cadillac Society said the 2.0-liter option shows "built out" or "no longer available," and the online configurator at the Cadillac site confirms the omission. The retired engine can be had in the XT4 crossover, rated at the same 237 horsepower and 258 pound-feet of torque. This means a couple of things for the big sedan. The CT6 entry price was $50,495 before destination, but fitted with the now-base 3.6-liter six-cylinder, the entry price has gone up to $55,495. The other change is that rear-wheel drive is no longer available; the three remaining engine choices come with all-wheel drive. Those engines are the NA 3.6-liter V6 with 335 hp and 284 lb-ft of torque, a 3.0-liter twin-turbo V6 with 404 hp and 400 lb-ft, and coming in a few months, the detuned 4.2-liter Blackwing twin-turbo V8 with 500 hp and 574 lb-ft, down from 550 hp and 627 lb-ft. Cadillac Society thinks one of the possibilities for making the move could be that GM is having a hard time meeting demand for the 2.0-liter. That might be, but we think no matter the reason, the result puts more logical pricing between the midsize CTS/CT5 and the full-size luxury flagship. We don't know how Cadillac will price the coming CT5, but there's now an $8,005 difference between the CTS and the CT6, instead of the $4,000 gap when the 2.0-liter was a CT6 option. Mercedes-Benz, for instance, puts a $12,000 gap between the C-Class and the E-Class, a $38,000 gulf between the E-Class and the S-Class. There's a $19,000 difference between an Audi A4 and A6, a $25,000 difference between an A6 and an A8. It isn't clear if this will affect every other market where the CT6 is sold. The Canadian, Mexican, and French Cadillac site configurators don't list the 2.0-liter turbo, but the Chinese Cadillac site does.

Cadillac's semi-autonomous Super Cruise pushed back to 2017

It looks like General Motors is discovering just how difficult it is to bring autonomous vehicle technology fit for public consumption to market. The company has pushed back the launch of its semi-autonomous Super Cruise technology by several months. Originally promised by CEO Mary Barra for a fall 2016 debut, Super Cruise was supposed to be offered first on the new CT6 sedan. Automotive News is reporting that won't be the case, following a statement from GM confirming that the new system would be pushed to sometime in 2017. At the very least, that's a several month delay. GM cited the need to get the system right and keep owners safe, which prevented a firm date for Super Cruise's debut. Product boss Mark Reuss was more blunt, though, telling AN, "It will come out when it is ready." Super Cruise would be one of the earliest examples of driverless tech to be put into public hands, following the introduction of Tesla's semi-autonomous AutoPilot system in 2015. Most other automakers experimenting with the autonomous vehicles don't foresee public sales until early in the next decade, including Toyota, Renault-Nissan, and Volvo. Before Barra suggested a 2016 debut, GM originally aimed to introduce its semi-autonomous system in 2020. Related Video:

GM Design shows what could have been and what might be

We periodically like to check in with GM Design's Instagram account to see what they're cooking up. Even better is when we catch a glimpse of an alternate history of what legendary designers from The General's past were thinking, though those ideas may not have made it into production. This week, for example, the account posted some illustrations from George Camp, whose career at GM spanned nearly four decades, from 1963 to 2001. One of the renderings is of what appears to be a 1971-72 Pontiac GTO Judge, but with two headlights instead of the production unit's quad beams. The rear departs from the canonical version most dramatically, with a massive integrated wing. Other bits that didn't make the production cut include large side vents, a gill-like side marker and rectangular intakes below the headlights that wouldn't be out of place on a modern design today. Amazingly, from what we can make out of the date, it appears that the drawing was done sometime in 1965, which makes it quite prescient.           View this post on Instagram                       A post shared by GM Design (@generalmotorsdesign) There's also a very aerodynamic interpretation of a Corvette ZR-1. To our eyes it splits the difference between the 1986 Corvette Indy concept and a fourth-generation F-body Pontiac Firebird, so perhaps parts of Camp's work on this sketch did make it into physical form. There's also a radical sports car concept from May 1970 that resembles the Mazda RX-500 concept from the same year, a Syd Mead-looking Cadillac coupe, and an Oldsmobile with a cool take on the company's trademark waterfall grille and elements of the Colonnade Cutlass at the rear. Other recent posts include a FJ Cruiser-like off-road EV, a sleek coupe with the Chevy corporate grille, and a rendering of a Silverado-esque pickup that looks far better than the current production version.           View this post on Instagram                       A post shared by GM Design (@generalmotorsdesign) It's pretty easy to lose hours in the account, but it's always fascinating to see GM's visions of what could have been and what might be. Related Video: