For example , in the United States Briggs Cunningham 's business was classified as a hobby by tax officials because he did not manufacture enough of each model for the Cunningham automobile to be considered a production vehicle , but rather the IRS classified them as high-performance prototype automobiles built as racecars .
For example , in the United States Briggs Cunningham 's business was classified as a hobby by tax officials . This was because he did not manufacture enough of each model for the Cunningham automobile to be considered a production vehicle .