A thesis statement must show the author's position on the subject.
This must be done because:
In this case, the thesis statement of the text presented in the question above must show an opinion, an argument about vehicles, which is the subject of the text. An example thesis statement for this text might be:
"Automobiles can represent safer transport, however, decreasing family size and the rush of modern life have made motorcycles a more popular and profitable option."
More information about the thesis statement at the link:
https://brainly.com/question/892903