At 60 miles an hour the loudest noise in this new Rolls-Royce comes from the electric clock.

This line is best known as a celebrated piece of early 20th‑century advertising copy for Rolls‑Royce, used to dramatize the extraordinary quietness and refinement of the company’s cars at a time when engine, road, and wind noise were accepted as unavoidable. The phrasing is commonly linked to the launch and promotion of the Rolls‑Royce “Silver Ghost” era (often dated to the 1906–1907 period), when the marque was building its reputation for smooth, near‑silent running and meticulous engineering. Although it is frequently repeated as an “anonymous” quip, it circulated as promotional language rather than as a remark traceable to a single identifiable speaker in a documented interview.

The sentence is a compact boast: if the loudest sound at speed is merely the ticking of the clock, then every other mechanical and environmental noise has been subdued. It turns an everyday, domestic sound into a benchmark for engineering excellence, implying that the car’s power is matched by serenity and control. The claim also sells a social meaning: quietness signifies luxury, precision, and modernity—an automobile so well made that it feels less like a machine straining against the road and more like a private, insulated room in motion. As advertising, it exemplifies how hyperbolic comparison can make an abstract quality (refinement) instantly imaginable.