I have a 2010 Prius that came with Yokohama 33's. These wee rough riding tires in the Prius. After reading consumer report, who rated the Continental ProContact Eco + as a great tire I went to TR and bought a set. The tires wandered on a four lane road at 65mph so I returned to TR and they said I could return the Continentals by the end of the month if I didn't like them. TR put a set of Michelins on hold for me. After a few days I change the tire pressure to the tire pressure on the door. This cut out 90% of the drift and by the end of the month almost all drift was eliminated due to the tires wearing in. Reading TR reviews on both tires, at the end of the month I returned the Eco+ for the Energy Saver ES. As soon as I drove out of the garage I knew I would not keep the Michelins. They were Hard, stiff, and a rough ride. The mileage is 1-2 better on the Continentals and the ride is a 9-10 where the Energy savers is a 3-5. I missed the return date at TR and am now stuck with the Michelins. Don't always trust reviews for ride but if you have a Prius and you hate the hard seats and want a comfortable ride go with the Continental ProContact Eco + over Michelin Energy Saver A/S or the Yokohama 33 that came with the car. The Yokohama 33 rode about like the Michelins, 3-5, Continentals 9-10.