The First Amendment assures freedom of expression in all forms, not just spoken words or printed words, but artistic expression in any form (short of kiddie pron), obscene pictures, films or sculptures, naked 'exotic dancing', etc, and the crucifix in a jar of excrement is the extreme example.
It is beyond question a settled issue that the expression of art in all forms is protected by the 1A. It is not a stretch of imagination at all to define all forms of Motorsports Activities are Performance Art, in fact no different than ballet dancing, competing in the Olympics, or riding a unicycle while juggling cups and saucers on the Ed Sullivan Show. (I offer John Force as exhibit 1)
Therefor, all activities pertaining to motorsports, whether racing, or cruising the local main drag to exhibit your art, including preparing for events, is artistic expression.
In fact, whatever you do, repair, restore or modify, simply working on a car is no different than Michael Angelo rubbing off bits of stone to reveal David, it is what you do to create a desired end result.
Art is the expression of Desire, therefor anything to do with accomplishing anything desired with cars, race or show, motors of any kind, including electric, is protected by the First Amendment.
Philosophy of art - Art as expression | Britannica
https://www.britannica.com › topic › Art-as-expression
Instead of reflecting states of the external world, art is held to reflect the inner state of the artist. This, at least, seems to be implicit in the core meaning of expression ...