Does the 350z has to have z rated tires or can other kind of tires be mounted,
I ask this because im getting a great deal on some new Bridgestone Potenza RE050A (run flat tires) 2-245/35/19 and 2-275/35/19. Will there be any handling issues with the car with this tires or do I have to get z rated tires.

 

I believe those are the tires that come with the Z stock. I have a set on my car and they are my tire of choice.

 

Look at the placard on the drivers door jamb. What does it say?