Good question. I'm a car salesman and have searched several times, but nothing comes up on the internet. so I proposed my own...St. Felix of Cantalice...
St. Felix was the official beggar for the Capuchins in Rome in the mid 1500s. The Saint of the Day site says
"As he made his rounds, he worked to convert hardened sinners and to feed the poor as did his good friend, St. Philip Neri, who founded the Oratory, a community of priests serving the poor of Rome. When Felix wasn't talking on his rounds, he was praying the rosary. The people named him "Brother Deo Gratias" (thanks be to God) because he was always using that blessing."
That's basically what I do: jump through hoops, beg for business, keep a "thanks be to God" attitude...and...pray the rosary (prospecting)....
There are no patron saints of sales. St. Lucy of Syracuse is the patron saint of salesmen.
There is no patron saint of auto body.
There are no patron saints of yard sales.
There is no patron saint of auto racing or formula one.
Lucy of Syracuse is the Patron Saint of "salesmen". Memorial date 13th December.
Saint Francis de Sales is the patron saint of authors
St. Joseph
Gabriel the Archangel is the patron saint of broadcasters as per the Patron Saint Index.
As per the Patron Saint Index, the following are patron saints of the deaf:Cadoc of LlancarvanDrogoFrancis de SalesMeriadocOuen
A patron saint can be patrons of more than one designation. The following list is of patron saints of writers and other professions.Francis de SalesJohn the ApostleLucy of SyracusePaul the Apostle
The Patron Saint of writers and journalists is Saint Francis de Sales.There are patron saints of book sellers, book keepers and book binders but no patron saint of books.
The Patron Saint Inex lists no patron saints of bears.