Toyota Prius is top selling hybrid

The popularity of hybrid cars continue to grow through out the world. It's been nearly a decade since the first Toyota Prius went on sale. According to this report, cumulative sales of this car totaled 1.047 million as of the end of May.

Toyota is still working on what is expected as the next innovation of hybrids, the switch to lithium-ion batteries.

Toyota now account for 80% of car sales in the US.