Doris is a 1973 VW Bus. She is named after Doris Day, who drove yellow cars in most of her movies and always seemed to find parking very easily, which is necessary in this fair city. It's also a name from a previous era, which you don't here to often these days.
Doris is sweet but fussy, doesn't like the cold, nor rain, but seems to love a bright sunny day and the wind at her back. It makes it easier for her to get up hills.