Based on the information provided, the film 'Mind Over Motor' does not feature any identifiable LGBTQ+ characters or themes. Therefore, its net impact on LGBTQ+ portrayal is categorized as N/A, indicating no depiction.

The film 'Mind Over Motor' is a documentary short focusing on a paraplegic man's life and his modified car. Based on available plot summaries and character descriptions, there are no identifiable transsexual characters or themes present in the narrative.

The movie does not contain any action or adventure elements.

There is no widely established source material or historical record for the 1923 film "Mind Over Motor" that would define character genders prior to its release. All characters are presumed original to this production, thus precluding any gender swaps.

Mind Over Motor (1923) is an original silent short film featuring characters created for the production. There is no prior source material or historical record from which a character's race could have been established and subsequently changed.