p7s

I've just had a new tyre fitted following a puncture, on the front left one. I have the 17" Stylance wheels, with the standard 225/45/17 Pirelli P7 tyres. The tyre place have fitted a 225/45/17 Pirelli 'P-Zero Rosso' tyre. Is this a problem if the other front tyre is still the original P7 (tread...