Nice Z nice wheels 8) style 105 so square set up 4 x 8j 17 inch so you have a plethora of sizing options.
No reason why you can't replace with a similar staggered set up or you could go
225-45-17 front 245-40-17 rear.
Switching to 4 the same I'd consider 235-45-17 all round or even 225-50-17.
