I just replaced my tires and went with these. Went with 245/45/17 all the way around.
They seem to stick pretty well in the twists. I'm going to the track tonight to see what they can do there.
Did i mention i got them for 300.00? Mounted , balanced and out the door?

 

Hmmmm...I put them on my old Lexus LS400. I'd call them a decent all season tire, but nothing that I'd put on a Z. They did hold the road just fine, but steering response was sluggish. Then again, I'm talking about a 1991 Lexus. Not a tire for the Z if you want to be congruent with the designa and purpose of the car.

 

Yeah they aren't really in the same class as far as grip with the OEM Potenzas. I have SP9000s on my car and I love them.

 

Well, i have to agree. Steering is a bit sluggish and it wants to wash a bit. Not bad for the money but, i think i'll put them on e-bay and go with something else.