I have 225/55/16 ZR's on my GP! Mine are ultra high performance Summer only tires but you can get 225/55/16/ZR's in an all season as well. The speed rating is MUCH more important than the size:
Z rated-open rating above 149MPH
V rated-up to 149 MPH
H rated-up to 130 MPH
T rated-up to 118 MPH
S rated-up to 112 MPH
Speed ratings are very important not for the MPH rating but they indicate how strong the tire construction is, how soft the rubber is (traction), and how cool the tire will run at high speeds! So many people run wide tires that are S/T/H rated tires that are junk! If you want real performance, you must have V/Z rated tries that have a decent tire contact patch (at least 225 mm) and a side wall profile of at least 60. Running a 245/50/16 that is rated as a S/T/H rated tires will get totally smoked by a 225/55/16 ZR summer only tire!
