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Full-size performance

2020 Cadillac CT6-V

Full-size performance powered by 2020 Cadillac CT6-V 4.2-liter Blackwing twin-turbo V8.

Classic Muscle EditorialLast reviewed Sep 15, 2026

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Engine 2020 Cadillac CT6-V 4.2-liter Blackwing twin-turbo V8
Output 550 SAE-certified hp at 5,000 rpm (2020 Cadillac product-information sheet)
Transmission Hydra-Matic ten-speed automatic
Program Modern American Performance

Story

2020 Cadillac CT6-V

The CT6-V pairs Cadillac's 4.2-liter Blackwing twin-turbo V8 with all-wheel drive and a ten-speed automatic. The 2020 brochure distinguishes it from the lower-output CT6 Platinum; Platinum equipment must not be assumed standard on this performance application.

Evidence boundaries

Output rpm follows the archived Cadillac 2020 product-information sheet. Its final-drive entry remains TBD. The 256-CID field is an approximate geometric conversion from the sheet's 86 mm bore, 90.2 mm stroke and eight cylinders, rounded to the nearest cubic inch; it is not a factory-stated CID figure. Nominal displacement remains 4.2 liters. Fuel-capacity figures conflict between the reviewed documents and are omitted. Production totals and acceleration claims remain unreviewed.

Photo pending

No exact-year reusable exterior has been accepted. Manufacturer brochure images are reference evidence only. Collection membership remains deferred while eligible imagery is absent.

Price history

Values

Nominal dollars from original price sheets, auction archives, and approved value references.

Original Price

A verified original price is not yet available for this car.

Values move with paperwork, originality, options, condition, venue, and body style. High bids and guide values are labeled separately from completed sales.

Reference records

Options, Colors & Components

Source-backed details for trim, chassis, production, and authenticity.

Engine Details

  • Documented model-year powertrain 2020 Cadillac CT6-V 4.2-liter Blackwing twin-turbo V8; 550 SAE-certified hp at 5,000 rpm (2020 Cadillac product-information sheet); 640 lb-ft at 3,400 rpm (2020 Cadillac product-information sheet) · 2020 Cadillac CT6-V · engine assembly / specification

Transmission

  • Factory transmission Hydra-Matic ten-speed automatic

Still Researching

  • rear axle The reviewed evidence does not provide a complete exact-year rear axle specification and application record.
  • brakes The reviewed evidence does not provide a complete exact-year brakes specification and application record.
  • suspension The reviewed evidence does not provide a complete exact-year suspension specification and application record.
  • option packages The reviewed evidence does not provide a complete exact-year option packages specification and application record.
  • production The reviewed evidence does not provide a complete exact-year production specification and application record.
  • paint colors The reviewed evidence does not provide a complete exact-year paint colors specification and application record.
  • trim and appearance The reviewed evidence does not provide a complete exact-year trim and appearance specification and application record.
  • interior The reviewed evidence does not provide a complete exact-year interior specification and application record.
  • authenticity markers The reviewed evidence does not provide a complete exact-year authenticity markers specification and application record.

Codes & names

Names & Engine Codes

Common names and codes are grouped so LS6 references point to the same engine, not separate pages.

2020 CT6-V Blackwing V8 2020 Cadillac CT6-V 4.2-liter Blackwing twin-turbo V8

Photo and video gallery

Gallery

0 additional photos or videos

Approved images are shown with the relevant sections above. No additional gallery media is available yet.

Sources & Documentation

Reader contributions

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