I recently replaced my OEM Dunlops with Sumitomo HTR 200s and have had significant effect on my driving experience. On the upside, the handling is much better, as is the ride. On the downside, my mileage has suffered about 10% (about 44 down to 39 mpg), even after bumping up the pressure. Although I like their handling aspects, I would not recommend these tires as a replacement on the hybrids, since most hybrid drivers demand high mileage as part of the performance equation. Maybe I will try the Michelins next time.....