The Sanders visited a number of car showrooms in their city and read a lot of reviews in journals and online before deciding on a car. This shows that:

This shows that the Sanders took their car purchase decision seriously and did not make a rash decision. They actively sought out information, both directly by visiting showrooms and indirectly through research, to make an informed decision. This indicates that the Sanders have planned their purchase carefully, taking into account price, features, and other important factors to make the best decision for their needs.

Rational individuals may invest a lot of time and collect information before making a decision.