RT8 ✓ Factory-verified

Buick · Regular Production Option

Wheels, 19 inch (48.3 cm) Avenir Premium Pearl Nickel aluminum

Years 2025–27 Models 2 Factory citations 7

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Also described as Wheels, 19" (48.3 cm) Avenir Premium Pearl Nickel aluminum

Documented applications

Encore GX — VSS-F (2020–2027) →

• 2025–2027 ✓ Factory-verified

  Avenir: S

  ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7.

  ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.7.

  ⛭ GM factory document — 2027 buick encore gx fleet order guide, p.7.

Envista — VSS-F (2024–2027) →

• 2025–2026 ✓ Factory-verified

  Avenir: S

  ⛭ GM factory document — 2025 buick envista fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2025 buick envista fleet order guide, p.6.

  ⛭ GM factory document — 2026 buick envista fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2026 buick envista fleet order guide, p.6.

This page aggregates every documented appearance of RT8 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.