Boy the Wandering Dog by Marshall Saunders

A few days after Sir Edward's adventure, and when he was quite restored to health, and ready for more experiences (for he was a most daring, plucky old man) there was a strange arrival in our home.

I had been to New York with my dear mistress. She wished to call on some friends on Riverside Drive and had invited me to go with Amarilla, for she knew I loved motoring. Fortunately it was not a very cold day, and she took the touring car. I detested the limousine. She was all wrapped up in a big cloak, and Amarilla sat on her lap and kept her warm. I thought that of all the ladies we passed in handsome automobiles, not one had such a dear face as my own mistress. I sat on the seat beside her, and she tucked the rug all round my neck to keep me comfortable.