Hyundai's 3-pronged electrified vehicle approach is named Ioniq; a trio of 5-door models consisting of hybrid, plug-in hybrid and fully electric choices delivering over 50mpg and beyond. What did Hyundai just do here? Is it possible they just built a better Prius? The Ioniq has a lower starting price, returns even better mileage and offers greater passenger volume. And just as Toyota turned up the driving dynamics on the current …