Hello all,
Donmar, a word of caution. The T1-R's, as good as they are, are an old design which is in the process of being phased out. You might be able to get them now ok, but if you damage one in 12 months time they might not be available, and you could end with a mixture of tyres.
If you are getting four new ones now you'd be wiser to move to the latest patterns, i.e. The T1 sport or C1-S. I've got four C1-S's on my IS200. Dead silent, firm feel. Really like them.