I’m going to model the Munster Koach from the 1960s U.S. TV series, “The Munsters”. This car was built by George Barris from three Ford Model T bodies. Although there aren’t specific blueprints for the Koach itself, there are many photos of restorations of the original Koach and at least two other replicas.
I remember seeing ads for the model kit in comic books when I was a kid (giving away my age!), but I never got to build it then, so I’m going to try it now.