The document discusses what people know about different types of electric vehicles based on Google Trends search data. It analyzes search terms and trends for plug-in hybrids, battery electric vehicles, and hydrogen fuel cell vehicles. For plug-in hybrids, it finds people are most familiar with Toyota and Honda hybrid models and interested in purchasing. For electric vehicles, interest centers around learning benefits compared to gas vehicles, with Tesla as the dominant brand. For hydrogen fuel cells, it finds most people know little and search generically to learn about how the technology works.