This should’ve been it. The American luxury/performance flagship auto to assuredly angle up to V-8-powered German sedans like the Mercedes-AMG E 63 and S 63, BMW M5, M6 Gran Coupe, and 750i, and Audi RS 7 and S8 cars (and maybe alike the Lexus GS F) that accept bedeviled the continent-crossing swift-sedan bazaar forever. But afore we alike got a adventitious to appropriately analysis a 2020 Cadillac CT6 4.2-liter twin-turbo Platinum powered by the boss Blackwing V-8 alien in 2018—let abandoned analyze it adjoin its competitors—the car was cancelled. Production concluded in January.
It’s a arrant shame, absolutely (and apparently a fire-able breach for the accommodation makers involved) to accept advised and developed this high-tech agent from scratch, alone to advertise beneath than 1,400 examples afore yanking the plug. Like the 4.0-liter twin-turbo V-8s from Audi and Mercedes and the 4.4-liter from BMW, it appearance two twin-scroll turbos army in the basin of the vee, butt deactivation of four cylinders, capricious valve timing, absolute injection, and a host of added high-tech features. It’s alike hand-assembled and active by its architect as abounding of the Euro engines are. Displacing 4.2 liters, the Blackwing’s ratings of 500-550 hp and 574-640 lb-ft (in Platinum or CT6-V trim) analyze analytic able-bodied to the auto fitments of the adversary engines in Audis (453-591 hp and 487-590 lb-ft), BMWs (523-617 hp and 516-590 lb-ft), and Mercedes-AMGs (469-603 hp and 479-664 lb-ft). Furthermore, GM’s new ten-speed automated meets or exceeds the achievement of the eight- and nine-speed boxes currently confined the Germans in agreement of about-face accuracy and quickness, and shift-schedule logic, abnormally in action modes.
At atomic as important as abacus ability is abbreviation weight, and the CT6’s Omega-platform chassis, acquired from the Alpha belvedere that has been so able-bodied accustomed in added Cadillacs and the Camaro, weighs in at aloof 4,407 pounds in its absolutely loaded Platinum trim (the sportier CT6-V acceptable weighs less). That’s 185 to 698 pounds beneath than any contempo A8L, BMW 750i, or Mercedes-AMG S 63 we’ve measured. Comparing adjoin the hardly abate V-8 competitors it added carefully matches in price, our CT6 Blackwing weighs 174 pounds beneath than our aftermost E 63 S 4Matic and is about 140 pounds added than the BMW M5s we’ve weighed. Fitted with alluring ride-control shocks and a adult multi articulation advanced and rear suspension, the CT6 seems able-bodied able to action these aces competitors.
5 Cool Things: The New Cadillac CT5
Click to expand
The 60-mph mark flashes by in 4.1 abnormal en avenue to a 12.4-second 113.0-mph division mile. That calmly quashes the BMW 750i (4.3 and 12.7 seconds) and access non-V-8 Audi and Mercedes flagships, but the Audi RS 7 and the Mercedes-AMG S 63 calmly smoke the Cadillac (3.3/11.5 and 3.4/11.6 seconds, respectively), as do the abate E 63, M5/M6, and alike the BMW M550i xDrive. The CT6-V would absolutely barber a few tenths off that performance, but it apparently won’t vanquish the industry stalwarts.
The story’s appealing abundant the aforementioned on cornering, area the CT6 acquaint a reasonable 0.91g boilerplate crabbed grip—better than 750i/A8L (0.90/0.89 g) while falling abbreviate of the anchor displayed by the zootier full- and midsize action sedans. That’s not bad performance, accustomed the Cadillac’s added ride-oriented Goodyear Eagle Touring tires, which alone managed a 119-foot stop from 60 mph—that’s 3 to 22 anxiety best than any of the advised competitors. Accessible Eagle F1 Asymmetric 3 summer tires on the CT6-V would no agnosticism advance conspicuously on both of these results. (Our figure-eight advance was not accessible due to the all-around pandemic.)
Cadillac strikes a nice antithesis in this CT6 amid accouterment reasonable active dynamics back your adrenaline is running, and airy touring behavior back it’s not. Body motion ascendancy is composed, council feel is acceptable for the class, and the anchor pedal feels bigger than its blah endlessly distances suggest. The 10-speed Hydra-Matic manual is alluringly commutual with this agent and programmed so able-bodied as to anticipate the charge for about-face paddles. Could this 4.2TT or possibly a well-driven CT6-V outrun an S 63, Alpina B7, or S8 on a French corniche in a Ronin-style bad-guys chase? Possibly not, but audacious you don’t die in the chase, you’ll bacchanal in the abatement Bose Panaray tunes and acquisition it abundant easier to wind bottomward while active the CT6 4.2L Platinum home afterwards with the Super Cruise set (presuming addition maps the French Autoroutes).
Although its autogenous design, abstracts choices, and trim patterns aren’t as aces as those of the new Escalade, the CT6 berth charcoal abnormally American and as audibly Cadillac as the aloof angular exterior. All that weight accumulation alluded to aloft costs the Cadillac somewhat in agreement of babble isolation. It’s aloof not absolutely as quiet in actuality as it is in an A8, 7 Series, or S-Class. But what the CT6 lacks in library ambiance, it somewhat makes up for in library roominess, boasting added advanced and rear head- and legroom than the approachable S-Class (Mercedes boasts way added accept room, however) and added all-embracing front-seat commuter amplitude than any of the advised competition; the Audi and BMW rear seats are bigger. At 15.8 cubic feet, there’s beneath block amplitude than in the big Benz and BMW; added than in the Audi.
This absolutely depends on the contenders. Matched adjoin Audi, BMW, and Mercedes press-car flagships that bout the CT6 4.2TT AWD analytic carefully on amount would accept precluded V-8 engines in the competitors, giving the Cadillac a big achievement advantage. This, accompanying with its adeptness packaging, ablaze weight, and aerial affection agreeable (especially Super Cruise) ability accept been abundant to acreage Cadillac a win. Had we commutual it with abate high-performance contenders that still appear abutting in price, we’d accept had to footfall bottomward to an optioned-up E or possibly C 63 AMG from Mercedes, a abject M5 (still a few thousand more), and acclimatized for an Audi S6 with a twin-turbo V-6 or spent added for the V-8-powered RS 6 wagon. Any of those pairings would absolutely alarm for the CT6-V, which ability accept seemed richer in space, comfort, and appearance at some amount of performance. That ability adumbrate a mid-pack finish. Sadly, no such comparisons are acceptable to happen.
Prior to the annulled Geneva Motor Show, Manifattura Automobili Torino, an Italian coachbuilder accepted for bearing the New Stratos (styled to resemble Lancia’s allegorical assemblage car) and bazaar architect of cars like the accessible Aspark Owl electric hypercar, reportedly addled a handshake accord with GM to accumulation Blackwing engines for an bearding approaching product. But anon thereafter GM awash its Turin agent centermost and about appear that this accord was off. That seems tragic. Why bankrupt the apple of this accomplished engine? And wouldn’t the bean counters be admiring to compensate a bit added of the engine’s aerial development costs affairs engines at a amount befitting a handmade Italian exotic?