Final answer:
The purpose of the persuasive speech is to persuade the audience to take public transportation instead of driving.
Step-by-step explanation:
The outcome or purpose of a persuasive speech exemplified by the statement 'To persuade my audience to buy a zero-emissions totally electric vehicle' is 4) To persuade the audience to take public transportation instead of driving. In this statement, the speaker is trying to convince the audience to choose a zero-emissions electric vehicle instead of a traditional gas-powered vehicle. The goal is to persuade the audience to change their behavior and opt for a more environmentally friendly mode of transportation.