While I have never owned a set of P7 Cinturato, I have owned two sets of Pirelli tires. My boss has a set of P6 on his Acura. And a good friend of mine, who is a real Ford car guy, has owned a few sets of Pirelli. All of us have never had a set of Pirelli tires that have lasted anywhere near the claimed mileage.
If long tread life is an important factor for you, skip the Pirelli tires. You will be disappointed. If for some reason you decide to go with a set of Pirelli anyway, make sure you buy them from a tire store that is well known for making good on tread wear warranty adjustments, such as Discount Tire.
The last set of Pirelli tires I had wore out about 20,000 miles early. Luckily I bought them from Discount Tire, and they let me apply the warranty towards a set of Michelin. So it worked out.