To dream of a Mercedes Benz represents decision making that is centered in established superiority, permanent entitlement to power, or certainty about your degree of tenure. Situations were you feel you can’t lose ever again.
Negatively, may reflect arrogance, strong feelings, too much entitlement, or showing off with power that can’t be removed.
Alternatively, may represent jealousy of someone who you feel may have too much power or embarrasses you by making you feel that they are better than you. It may also point to a fear of never being able to outdo someone or be better than someone who has established themselves.