Nick's complaint that the Rolls's clock is "too loud." is a reference to Rolls Royce having advertised that the loudest thing in the car was its electric clock. Lincoln made a car with a quiet clock and advertised their car was quieter than a Rolls Royce. Rolls changed their clock and came out with an unprecedented ad claiming "We fixed the Clock." Another reference to this quietest car clock brouhaha comes in La moglie giovane (1974) when the young wife Luisa comments that the Rolls Royce electric clock makes no noise.