Interior, Sky Cool Gray with Santorini Blue accents, leather seating surfaces with mini-perforated custom quilted inserts and sueded front seatbacks

Years 2025 Models 2 Factory citations 2

Also described as Interior trim, Sky Cool Gray with Phantom Blue accents, high-performance full semi-aniline leather seats

Documented applications

CT4 — Alpha 2 (2020–2026)

2025 Factory-verified

V-Series Blackwing; included with and only available with the Petit Pataud Special Edition (ZLZ); limited availability; seat code AQJ

GM factory document — 2025 cadillac ct4 v ct4 v blackwing fleet order guide, p.35.

CT5 — Alpha 2 (2020–2026)

2025 Factory-verified

only in: CT5-V Blackwing; Twenty-Two Carbon Fiber trim; included and only available with the Le Monstre Special Edition (ZLZ); limited availability

GM factory document — 2025 cadillac ct5 v ct5 v blackwing fleet order guide, p.35.

This page aggregates every documented appearance of EG1 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.