After selling my 2005 Prius with lowering springs, rear sway bar, under bracing and 17 wheels (Primacy MVM4 tires), I was a bit disappointed when I purchased a 2012 Prius that came equipped with Yokohama AVID S33D tires. The ride was nothing to write home about, the traction was a bit unpredictable and the car was more apt to tramline than anything else I had ever driven. I immediately swapped out the tires thanks to Yokohama's customer satisfaction guarantee and I installed the AVID Ascend in their place. The wet/dry gripe is pretty incredible for a tall 15 tire. Road noise is low most of the time with minimal pinging on expansion joints. Fuel economy is comparable to the OE AVID S33D but everything else about the Ascend is superior. Now if they last as long as Yokohama claims they will then they will have a winner on their hands. :) It should be noted that steering response and overall handling seems better than the Energy Saver A/S. if you want a better handling tire then get the Ascend. If you want max MPG then take a look at the Energy Saver A/S.