In a Rolls Royce, at 100 km/h, the loudest sound is reportedly the ticking of the clock.

The claim suggests that in a Rolls Royce, at a speed of 100 km/h, the cabin is so quiet that the ticking of the clock becomes the loudest sound. The evidence indicates that Rolls Royce prioritizes sound insulation to create a tranquil cabin environment, using significant measures like 300 pounds of insulation. However, while this demonstrates a focus on reducing noise, it does not specifically confirm that the ticking of a clock is the loudest sound at that speed. Without concrete evidence directly supporting the claim, it remains an exaggeration or marketing hyperbole rather than an established fact.