Did you know?

Rolls-Royce wanted their new model, Ghost, to be as quiet and relaxing as possible, but they ended up making the car too quiet inside. Occupants found the near total silence rather disorienting as it did not match up with the car's movement. So, they worked on "harmonizing" the various sounds inside the car to create a continuous soft whisper.
Picture Rolls-Royce Ghost was Too Quiet for Comfort