Michelin Pilot Sport Cups Prices

[roygarth]

225/40ZR18 MPS Cup = £208.57 + VAT each
265/35ZR18 MPS Cup = £258.76 + VaT each

I missed recent thread on this and can't find it. Are these OK prices for MPSC's? Should they be N rated for my 993RS?

Thanks
Piers