I am using Primacy LC for my Prius, 15" stock rim, 205/60. Compare to xm2, i realized that Primacy LC is relatively softer and quieter, and I have been using it for 1.5 yrs 40k km already, still have about 60% of tread left. I got the tyre from Serdang, RM260 per piece including balancing and new tyre valve, top up RM30 for alignment. However, i heard Primacy LC is slowly obsolete and it is not easy to find already. Your another option is
xm3, though i feel it is much harder than Primacy LC but in term of comfort, i feel it will be better than Pilot Sport 3, which i had used it on my previous ride before, VIOS. I feel that PS3 was bouncy and a bit of harder than
xm3, but in term of handling and braking, i can feel it was much better than
xm3. Primacy 3ST only available smallest 16", not for 15".