Why is the woman Audi a6?

No one will say that you are flamboyant when driving an Audi A6, and no one will say that you are low-key. This is a model suitable for any occasion. Used as a metaphor for a wife, it means that this woman goes out of the hall, out of the kitchen, becomes a wife at home, and goes out to be a lady who looks good to her husband. This is a good metaphor.