I dont think it is possible to get tyres in retail as new as 6 months all the times. None of the major brands are produced in Pakistan. From the time they are produced in the factory in Japan or anywhere else. It takes at least 3 months to get these tyres to the actual importer and then from there to retailer another 15-30 days and that is the fastest time if tyres come directly to Pakistan from the factories and are custom cleared in Pakistan. Even in this case due to long delivery time importers order big quantities at one time. Not all of them are sold in one month so they are kept and then sold all year around sometimes slow moving sizes takes even longer to be sold. That is why you get tyres in Pakistan which are mainly between 5 months to a year old.
Most of the tyres in Pakistan come from Dubai through Afghanistan in that case you can add another couple of months on the date before they will be available in the market
This is true that tyres start getting harder with time, but it takes much longer than 6 months especially if they are stored the proper way as recommended by the manufacturer which is mainly indoor and away from water.
On average a tyre life on the car is one year. The European tyre law which is really strict due to higher speed limits on motorway, allows tyre wholesalers to stock and sell tyres upto 18 months old and for retailer the time is upto 2 years. So the tyre can be upto 2 year old when it goes on your car and after using it for a year you sould start considering to change if you see signs of wear and tear. Based on this ideal shelf life of a tyre is 2 years and on the road life should be 3 year +.
Also I have seen in Pakistan that people press the tyres to see how soft it is thinking the softer is better. This is not true in all cases. If you want to see how soft the tyres is you should check the side wall. If a tyre is too soft that is also not good as that means its not strong enough to handle hits on the road.
You take any of the major brands like Michelin, Pirelli, Goodyear and compare them with Dunlop or Yokohama. Dunlop and Yokohama will always be softer and most of the time cheaper in price than any of the major brands and the reason for that is they are produced with less rubber that is why they dont give you as much mileage or road grip as Michelin, Gy or Pirelli. If you pick up a tyre made by Pirelli and pick up a Dunlop or Yokohama you will notice the difference in the weight of the tyre.
For the person who wanted to know the dealer of Pirelli in Lahore its J.Rashid in Nela Gumband. Pirelli Pakistan's website and advertising campaign is coming shortly then you will be able to find out official delaers in each city.