( http://www.TFLcar.com ) The 2012 Toyota Prius Plug-in and Prius C are two of the most fuel efficient cars on the market. At the same time the two hybrids are of course very different cars yet they share the same name, a very similar synergy hybrid drive and the same manufacturer. In this fun mashup suggested by a YouTube fan we compare the two cars to determine which one is the better buy?