This comparison is with the stock Bridgestone Potenza S001 tires that come as OEM on this vehicle.
Although there was an instantly noticable difference, I held off the review until a few 000 miles were covered and some experience in wet conditions was gained - the summer of '26 extended that period!
So, after 2K miles on a European road trip through Germany and Switzerland, and some UK jaunts, most types of road surface have been driven.
The original S001's I found to be good in the dry, but could easily oversteer on a damp roundabout, with the slightest early acceleration. The ride and handling was ok. The mileage of the tires' use was from 8k to 25k miles, and they still had over 3mm all round when changed - I did rotate for even wear.
The most immediately noticable difference in the Eagle F1's is the comfort and handling. You expect a firmer ride in an MX5 ND, but, particularly at high speeds, they are markedly better over bumps and imperfections. The dry handling is very reassuring - dry grip superb. Although not pushed hard in the wet, when rain arrived, the grip was good in the heavy showers, with no hint of aquaplaning.
I quite liked the more curved profile of the S001's and felt that the very straight sidewalls of the renowned Michelin PS4's and 5's were not for me - though they look cool. The F1's give that slight curved profile AND a really good curb protection too.
Another factor was the cheaper price compared to the PS5's, at the time.
I cannot comment on wear yet, but my view is that, with my average of 5-6K miles of weekend/holiday use, they should expire around the 5-6 year mark, when tires should be replaced on age. We will see!
Happy Motoring!!