Agreed re aging out before wearing out. The aero is surprisingly light on its rubber for a RWD car with plenty of hp/lbft and little weight. Even if you do quite a mileage on your car each year they will generally hit age first?

I have Michelin Pilot Supersport on the Aero S2 as the PS4S did not exist in that size when I was buying.

I went a little nuts and bought the more track day optimised Michelin Sport Cup 2 on the Coupe. You can tell when these are cold and are not worth the additional money on roads unless you have room to push on. Still fun though and not scary in the wet.

On the Merc (e63s S212 with a tune on it, 2WD) I use a variety of things to try them out. I get 12-15,000 on the fronts and 8-10,000 out of the backs as I have a heavy clog. I normally put a great tyre on the front for the steering feel and a good quality on the back as they will get toasty. A the moment I have just switched from Michelin PS4S to Continental SC7 on the front and replaced the rears with the same Yokohama Advan Sport 107 as they have been excellent and pretty good value.

When the tyres on the Coupe need replacing I will likely go with the Advans. as they have been really good for a road tyre.

Everyone loves a Morgan. Even me, unless it's broken again.