SHORT UPDATE AFTER A SHORT HIGHWAY RIDE
Last night, I with my family members decided to dine out on one of the restaurants built on M-9. Having installed the Primacy 4, it was the first longest ~80 KM ride thus far.
Believe me guys when I say this: I wouldn't have believed how much of a difference a good pair of tyres could make had I not installed this. I was constantly hitting 120 KPH and not even for a second I doubted its handling. I'm actually blown away by the performance of these tyres on highway. Grip, handling, braking, everything is spot on. Felt like I'm driving with wider tyres having better grip but the size is actually exactly the same as my previous Dunlop tyres (195/65R15). I wish I had installed these pair of tyres before the first ever longest road trip of my life (LHE - KHI) on the same car. 
Alhamdolillah very much satisfied with the performance so far. Excited to make more road trips!
PS: Dunlop has no match with Michelin. 