185mm tire looks very suitable for Cultus with best road grip.
Michelin is BEST among all, BUT if you can find them original here in PK. Michelin tire made in Europe will be ideal but very expensive.
2nd the most best available option is Yokohama. There is only 1 big name who import Yokohama Tire in Pakistan and its Shaikh Brothers and they are in Karachi.
I got their 185mm tire A.Drive for my old car, I drove it ~35K and tires are still new with no puncture.
8-B , Block -VI, P.E.C.H.S.,Opp. Nursery Off. Shahrah-e-Faisal, Karachi - Pakistan