Nissan also said it collected information on “sexual activity.” It didn’t explain how.

Nissan doesn’t provide a detailed explanation of how the data is collected, but they say that the source they collect the data is "Direct contact with users and Nissan employees," Whatever that means.

Based on this information, I can only infer that the Nissan sales handbook has a section on using seduction for particularly difficult and/or hot potential customers.

…I used to work at a pizza shop. Oh, so that's why we got so many orders from the local Nissan dealership!