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We're set to record Autoblog Podcast #326 tonight, and you can drop us your questions and comments via our Q&A module below. Subscribe to the Autoblog Podcast in iTunes if you haven't already done so, and if you want to take it all in live, tune in to our UStream (audio only) channel at 10:00 PM Eastern tonight.
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Cadillac's 4.2-liter Blackwing V8 to die with the CT6?

Cadillac's 4.2-liter twin-turbo Blackwing V8 debuted only last year, popping up in the CT6 V-Sport — now the CT6-V — with 550 horsepower and 627 pound-feet of torque. The engine's been stymied in every attempt to power a different Cadillac model since then. Its only two use cases have been a first and second run of the original, limited-edition super sedan and the CT6 Platinum V8 trim at a slightly detuned 500 hp and 553 lb-ft. Motor Trend cites "a highly placed source at GM" as saying that the Blackwing won't go into the coming high-performance version of the CT5-V nor in the next-gen Escalade. Left without options, there's a chance the Blackwing will die with the CT6, itself a sedan with its grille on the executioner's block just waiting for the bite of an ax that might or might not shortly fall. Cost-cutting has been tagged as the reason for this misfortune; Cadillac's sales malaise and lack of clarity as to how to turn sales around led GM to downsize the brand's allowance. The parent company chose to build the new CT5 on the Alpha platform used for the erstwhile ATS and CTS instead of the Omega platform underpinning the CT6. Along with that choice, the MT report says expense reasons nixed fitting the Blacking V8. We know the lower-tier V series CT5 will work with a twin-turbo 3.0-liter V6 making 355 hp and 400 lb-ft. When we heard spy video of the upper-tier V series CT5 out testing, the engine sounded like the 6.2-liter supercharged V8 that would be a carryover from the last model.  The XT6, also rumored to get some V sauce, simply can't fit the V8. Instead of sitting on the Omega platform as once planned, the XT6 rides on the C1XX architecture under other GM products like the Buick Enclave and Chevrolet Traverse. The C1XX engine bay doesn't have room for a stouter V6, much less a hi-po V8. The next-gen Escalade ruled itself out due to price issues in back, not in front. MT writes that the independent rear suspension supporting GM's next-gen full-sized SUV quartet has burned through cash in development, putting engineers a few direct deposits short of the funds needed to massage Blackwing installation. Earlier this year at least one report said the twin-turbo DOHC V8 could serve the top-spec next-gen Escalade. More recent reports of a performance-heavy next-gen Escalade have predicted the 6.2-liter supercharged LT4 V8 from the Chevrolet Camaro ZL1 and Corvette Z06.

Cadillac XT4 crossover reveals its lighting

The upcoming Cadillac XT4 compact crossover has once again been spotted, this time with less camouflage and an update to its lighting. Specifically, the little crossover is sporting production lighting front and rear, and it's sure to make the luxury SUV one of the boldest-looking Cadillacs. Part of the reason for this comes from the taillights. As we suspected from the last set of spy shots, the XT4 will have highly distinctive lights that run the full height of the C-pillar. Though it's a similar design to that of the Escalade, it's made more interesting by the significant forward rake of the rear pillar. Not only that, but that pillar is quite thick, too. The look is actually reminiscent of the old CTS wagon. Moving around the side, the reduced camouflage reveals that the doors and quarter panels are fairly conservative and lacking in many creases or bulges. We can make out the edges of what will likely be black plastic fender flares and rocker panel cladding. Finally reaching the front, we see that the headlights are similar to those of many current Cadillacs, including the recently refreshed XTS sedan. The main part of the lamp starts high up and is slightly horizontal like the Escala concept, but they extend over the fenders and a strip of LEDs descends down the front. A previous report noted the XT4 will be built in Kansas on the Chevy Malibu platform. That means it will be a front-drive-based vehicle likely offering both front- and all-wheel-drive. Under the hood will probably be at least one turbocharged four-cylinder engine, with a second, more powerful upgrade option a possibility. We expect to see the fully revealed model to show up by the end of 2018. Related Video: Featured Gallery Cadillac XT4 spy shots View 15 Photos Image Credit: Brian Williams Spy Photos Cadillac Crossover SUV Luxury cadillac xt4 cadillac xt3