Based on the lack of provided information regarding 'Motorradrennen in Mainz,' it is not possible to evaluate the portrayal of LGBTQ+ characters or themes. There is no evidence to suggest their presence, leading to an N/A rating for this film.

The film "Tosca" is an adaptation of Giacomo Puccini's opera, a classic melodrama set in 19th-century Rome. The narrative focuses on a tragic love triangle amidst political turmoil. There are no identifiable transsexual characters or themes present within the story.

The movie does not contain any action or adventure elements.

This 1924 silent film, likely a documentary or fictional work centered on a motorcycle race, does not have widely established source material or historical characters whose gender could be definitively compared to an on-screen portrayal. Without such a baseline, a gender swap cannot be identified.

The film is a 1924 production about a motorcycle race. There is no indication it is an adaptation of a fictional work with established characters or a biopic misrepresenting a historical figure's race. Therefore, the concept of a "race swap" does not apply.