Another "How Bad Is This Tyre" Picture

[M4cruiser]

This being a Michelin I was disappointed with what's happened, plenty of tread left on it, how many miles left in it?

[M4cruiser]

Thanks for your comments all, I have taken the advice and swapped it with the spare whilst arranging a replacement. This tyre cost £60 about 8 years ago, and the replacement looks like it's going to be only £57, so it's a no-brainer I suppose.
Also took some more photos when it was off, and found the problem It was made in Italy!!