Can Hyundai's Ioniq make inroads against Prius?

Since the Toyota Prius went on sale in 2000, nameplates such as Ford's C-Max and Honda's Insight have tried to mount a serious challenge to its domination of the hybrid market. And they have fallen woefully short.

Hyundai sees Ioniq as a compact contender

Hyundai's Ioniq is the most fuel efficient car in the industry without a plug. But the automaker isn't aiming for just a bigger slice of the green-