An interesting thing about the film was the that Luisa commented the Rolls Royce electric clock made no noise. At one time Rolls 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 A Candidate for a Killing (1969) where the male lead complains his Rolls's clock is "too loud."