For years, Cadillac fans had been waiting for a true flagship sedan capable of going toe-to-toe with the established German luxury players. The brand finally delivered with the Cadillac CT6 launched for the 2016 model year, a full-size four-door that paired distinctive styling and commanding road presence with an all-new rear-wheel-drive platform engineered to compete on the world stage. While it never quite matched the luxury and refinement of its European rivals, the CT6’s dynamic character made it one of the best drivers’ cars in the segment.
2019 Cadillac CT6-V Black Front AngleCadillac
Perhaps the best evidence of that arrived with the Cadillac CT6-V, which was added to the lineup for the 2019 model year. Powered by a new twin-turbocharged V8 known as the Blackwing, the range-topping sedan put the industry on notice with 550 horsepower and effortless high-speed performance. Unfortunately, Cadillac had already announced plans to discontinue the CT6 by the time the V model debuted, effectively turning the CT6-V into a limited-run halo car almost overnight.
This article is for informational purposes only and should not be considered financial or investment advice. Pricing and market information were accurate at the time of writing but are subject to change.
The Cadillac Performance Sedan We Hardly Knew
Base Trim Engine
4.2L Turbo V8 Gas
Base Trim Transmission
10-Speed Automatic
Base Trim Drivetrain
All-Wheel Drive
Base Trim Horsepower
550 hp
Base Trim Torque
640 lb-ft @ 3400 rpm
Fuel Economy
14/25 MPG
Infotainment & Features
8 /10
While the standard CT6 impressed with its sharp pricing, generous space, and surprisingly agile handling, Cadillac had bigger ambitions for its flagship sedan. Development of the car and its lightweight Omega rear-wheel-drive platform was overseen by Johan de Nysschen, the former Volkswagen Group executive who ran Cadillac from 2014 to 2018. He also championed the range-topping CT6-V powered by a Cadillac-exclusive twin-turbo V8 designed to take the fight directly to Europe’s best. Unfortunately for de Nysschen, he was ousted in 2018, the same year the CT6-V debuted, reportedly due to concerns over Cadillac’s performance and his reluctance to fully embrace SUVs and electrification.
Key Facts To Know
- Debuted at the 2018 New York Auto Show, originally labeled as the CT6 V-Sport
- Had a production run of just over 900 units
- Was the only GM model, along with the CT6 Platinum, to use the Blackwing V8
The CT6’s fate was effectively sealed at the same time. GM announced plans to discontinue the sedan shortly after de Nysschen’s departure, taking the CT6-V down with it. Cadillac initially planned to build just 275 examples of the CT6-V, all for the 2019 model year, but demand proved stronger than expected, prompting a limited extension into 2020. In the end, just over 900 were built. The 2020 model year marked the end of the CT6 in the US, although the nameplate lives on in China, where a second-generation model remains in production. Back home, GM repurposed the CT6’s Detroit-Hamtramck assembly plant into the EV-focused Factory Zero, and switched Cadillac’s sedan lineup to the smaller CT4 and CT5.
Cadillac CT6-V Specifications
2019 Cadillac CT6-V Engine BayCadillac
The CT6-V’s 2019 launch coincided with a mid-cycle refresh of the CT6 lineup, which sharpened the sedan’s styling and updated its technology. The facelift brought the latest interpretation of the brand’s “Art and Science” design language, first previewed on the striking Cadillac Escala concept of 2016, with more prominent vertical LED daytime running lights and a larger, more intricate mesh grille that gave the car a noticeably more confident front-end presence.
That refresh also introduced the Blackwing twin-turbo V8, which represented Cadillac’s most ambitious engine program at the time. In CT6 Platinum form it delivered 500 horsepower and 574 pound-feet of torque, while the CT6-V used a higher-output version rated at 550 hp and 640 lb-ft. It was a hand-built engine that skipped GM’s usual preference for simpler pushrod designs in favor of a double-overhead-camshaft layout. It also featured a hot-vee design, like many German V8s, which resulted in a relatively compact package as well as reduced lag, since exhaust gases had less distance to travel to reach the turbochargers.
Cadillac Twin-Turbocharged 4.2-liter Blackwing V8 EngineCadillac
Engine
Twin-turbo 4.2-liter V8
Transmission
10-speed automatic
Power
550 hp
Torque
640 lb-ft
0-62 mph
3.8 seconds (estimate)
Top Speed
149 mph (governed)
Curb Weight
4,480 lbs
Original MSRP
$94,895
On the road, the CT6-V feels more agile than its size suggests, with a level of composure that undercuts its full-size luxury sedan proportions. The twin-turbo V8 delivers strong, effortless acceleration, but in contrast to the supercharged V8 in the current CT5-V Blackwing, power delivery is much more muted and refined. Rather, it’s the chassis tuning that stands out in everyday driving. Rear-wheel steering helps shrink the car, resulting in it feeling smaller than its 122.4-inch wheelbase would suggest, and at higher speeds it subtly enhances stability, for example, during lane changes and highway cruising. Combined with magnetic dampers, powerful Brembo brakes, and a well-sorted suspension setup, the CT6-V manages to balance long-distance comfort with a surprising degree of precision when the road starts to open up.
“Despite its size and twin-turbo V8, the CT6-V is a surprisingly sharp and elegant sports sedan. It feels half its size on tight mountain roads, and never loses any of the comfort and poise a flagship sedan should have.”
– Joel Stocksdale, CarBuzz Editor
While the CT6-V didn’t stick around for long, all wasn’t lost. Lessons learned during the development of the car’s Blackwing V8 in particular went on to inform later high-performance engine work at GM, namely the 5.5-liter flat-plane-crank V8 family used in the current C8 Chevrolet Corvette Z06 and ZR1.
Why It’s Still A Bargain At Today’s Prices
2019 Cadillac CT6-V Black Rear AngleCadillac
Looking at the CarBuzz Marketplace and other popular classifieds websites, used examples of the CT6-V today typically sit well below the car’s original $88,790 MSRP. It’s not hard to find examples listed in the $60,000 bracket, most of them showing less than 50,000 miles. That’s despite the fact that, at launch, the CT6-V already looked like a relative bargain next to performance rivals such as the BMW M5 and Mercedes-AMG S65 when judged on power and capability. In other words, the CT6-V is still a bit of a bargain, despite its desirability and rarity.
The sharp used prices also put it in an interesting position against newer Cadillac performance models like the CT4-V Blackwing, which starts at about $65,000. Used CT6-V sedans can be had for less, despite offering a larger footprint, more luxury space, and a 550-hp twin-turbo V8 versus the CT4-V Blackwing’s twin-turbocharged V6. On paper, it’s hard to ignore the value equation: more car, more power, and greater exclusivity for less money, even if the newer Blackwing carries the benefit of being in current production with factory warranty support.
Cadillac CT6 VCadillac
So why hasn’t the CT6-V become a modern enthusiast darling? Part of it comes down to timing and identity. Its refined, luxury-first character meant it never fully captured the attention of traditional muscle fans, many of whom gravitate instead toward the louder, more aggressive CT5-V Blackwing. It also suffers from a branding quirk. The CT6-V began life as a more understated V-Sport model before being rebadged at the last minute as a full-fledged V model (today the equivalent of a V Blackwing), leaving it somewhat between identities rather than a fully defined halo performance sedan.
Ownership considerations also play a role. While the Blackwing V8 is generally regarded as a sophisticated and robust engine, it is a complex, low-volume twin-turbo design, and because of this, long-term maintenance could end up being more expensive than traditional Cadillac V8s. That said, the CT6-V managed an impressive 83 points out of a possible 100 on J.D. Power’s reliability scale. Because of the rarity, other sources of reliability are hard to come by, but CarComplaints lists very few issues with the CT6, and this bodes well for the V version as well.
The Future Collectible Nobody Talks About
2019 Cadillac CT6-V Black Front angle while Driving Under Steel Bridge in CityCadillac
The CT6-V arrived too late to save Cadillac’s flagship sedan, but that timing may be exactly what makes it such a compelling buy today. With fewer than 1,000 built, a hand-built twin-turbo V8 under the hood, and used prices hovering well below its original sticker, the CT6-V delivers a rare mix of performance, practicality, luxury, and exclusivity. Smart buyers have started to notice, and bargains this good rarely stay hidden for long.
Sources: Cadillac, CarComplaints, J.D. Power
