The Spectre has a redesigned version of Rolls-Royce's signature bonnet ornament, the Spirit of Ecstasy.

[13] The Spectre was launched at a press event at Napa Valley in the San Francisco Bay Area during the summer of 2023.

[6] She notes that Napa was also a symbolic choice: "This is the place where history and the old order of the wine world have been rewritten... you can make a fabulous Rolls-Royce without our V12 in front of it.

[6] A single custom commissioned variant called the Spectre Semaphore was unveiled at the 2024 Monterey Car Week.

[14] The car is named after its special Semaphore Yellow paint, with the colour being inspired by the varied terrains of California.