What is "studillac"

Studillac is a name given to a customised aftermarket car assembled between 1953 and 1955, comprising a hard-top Studebaker coupé fitted with a Cadillac V8 engine. The assemblers charged about $1500 more than the Studebaker standard model. An option was a dual-range Hydra-Matic transmission, at an additional $500.