I always knew my T's car (would see her getting out of "it" (changed over the years)) and it became as important an object as T; still remember the time she said she was going to be away and I thought I was fine with it but when I left therapy and saw her car, got the urge to slash her tires
My T never matched her cars; she was a small woman and usually had large, SUV-type cars. We even got in a discussion once about how good her car was (I had just researched/was buying a new car and had looked at her model as it was recommended as a comparison to what I was thinking of getting).