cadillaca

In a sentence

• Widzialem starego cadillaca na ulicy.

  I saw an old Cadillac on the street.

  The word 'cadillaca' here refers to a specific car model, the Cadillac, and is used as a noun.

• Jeździłem zawsze cadillaciem na przejażdżki.

  I used to always drive a Cadillac for excursions.

  The word 'cadillaciem' is the instrumental case of 'cadillaca,' referring to the same car model and used to indicate the tool or instrument of action.

• Zauważyłem błyszczące światła cadillaca w nocy.

  I noticed the shiny lights of the Cadillac at night.

  Here, 'cadillaca' is possessive, suggesting the car's ownership of the shiny lights in the sentence context.