[JSH]

I've driven on the Ecopia in a 2nd gen Prius and 2016 Spark EV. Good fuel economy but poor traction particularly in the wet.

The Michelin Energy Savers were the stock tire on my 2017 Bolt. Again, good fuel economy but poor grip (but better than the Ecopia). They lasted 39,000 miles

(However, the better grip could have just been because Michelins (215/50R17) were several sizes larger and wider than the 185/65R15 Ecopias on the Prius)