GB8 Factory-verified

Cadillac · Regular Production Option

Stellar Black Metallic

Years 2016–19, 2025–27 Models 9 Factory citations 19

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Also described as Paint, Stellar Black Metallic

Also documented for Buick Chevrolet GMC

Documented applications

ATS — Alpha (2013–2019)

2018–2019 Factory-verified

extra charge; 2019 from GM Authority's 2019 ATS exterior colors page

GM factory document — 2018 cadillac ats coupe fleet order guide wayback, p.1.
GM factory document — 2018 cadillac ats sedan fleet order guide wayback, p.1.

CT6 — Omega (2016–2020)

2017–2019 Factory-verified

touch-up paint WA-384A; extra charge, none on Platinum; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents)

GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.1.
GM factory document — 2018 cadillac ct6 order guide copy gm authority, p.62.
GM factory document — 2019 cadillac ct6 order guide copy gm authority, p.56.

CTS — Alpha (2014–2019)

2018–2019 Factory-verified

extra charge; touch-up paint WA-384A; 2019 per GM's 2019 CTS Sedan order guide, whose paint table lists it

GM factory document — 2018 cadillac cts sedan fleet order guide wayback, p.1.
GM factory document — 2019 cadillac cts order guide copy gm authority, p.72.

Lyriq — BEV3 (2023–2027)

2025–2027 Factory-verified

extra charge; not available with the black roof (41T); touch-up paint WA-384A

GM factory document — 2025 cadillac all electric lyriq fleet order guide, p.27.
GM factory document — 2026 cadillac all electric lyriq lyriq v fleet order guide, p.40.
GM factory document — 2027 cadillac all electric lyriq lyriq v fleet order guide, p.41.
GM factory document — 2027 cadillac all electric lyriq professional vehicle fleet order guide, p.16.

Vistiq — BEV3 (2026–2027)

2026–2027 Factory-verified

extra charge; not available with 41T black roof; touch-up WA-384A

GM factory document — 2026 cadillac all electric vistiq fleet order guide, p.28.
GM factory document — 2027 cadillac all electric vistiq fleet order guide, p.29.

XT4 — E2 (2019–2025)

2025 Factory-verified

Premium Luxury, Sport: O; extra charge; touch-up paint WA-384A

GM factory document — 2025 cadillac xt4 fleet order guide, p.29.

XT5 — C1XX (2017–2026)

2025–2026 Factory-verified

touch-up paint WA-384A; extra charge; offered in the Professional Vehicles guides with the Jet Black interior

GM factory document — 2025 cadillac xt5 fleet order guide, p.38.
GM factory document — 2026 cadillac xt5 fleet order guide, p.38.
GM factory document — 2025 cadillac xt5 professional vehicles fleet order guide, p.15.
GM factory document — 2026 cadillac xt5 professional vehicles fleet order guide, p.14.

XT6 — C1XX (2020–2025)

2025 Factory-verified

All trims: O; touch-up paint WA-384A; extra charge

GM factory document — 2025 cadillac xt6 fleet order guide, p.40.

XTS — Epsilon II, enlarged (2013–2019)

2016 Confirmed

extra charge, no additional charge on Platinum or Platinum Vsport; new for the model year, not available at start of production (GM Authority 2016 XTS changes)

This page aggregates every documented appearance of GB8 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.