#9. When it comes to fuel economy, individual results will definitely vary.
With recalls being the possible exception, the 2010 Toyota Prius is best known for its efficiency. In fact, the Prius is the most fuel-efficient mass-market vehicle sold in the U.S. , outperforming models such as the Honda Insight hybrid and diesel-powered Volkswagen Golf TDI. The EPA suggests that Prius drivers will record 51 mpg in the city, 48 mpg on the highway, and 50 mpg overall. However, as the saying goes, individual results vary. We've tested the 2010 Toyota Prius on multiple occasions and in varying weather conditions, with the final average coming to 45.3 mpg. Granted, our time behind the wheel included some law-bending speeds on the highway and a few quick starts from long-overdue green lights, but most of the miles were clocked slogging around town. Under those circumstances, we were a bit disappointed by the results.