Was wondering if my wheel alignment is good right now and I buy 4 new tires should I have the alignment re done or just balance the tires?

 

I'd get it realigned if it were me. After I put new rubber on the rears of the C2S, and did not get it realigned, the car would angle left on acceration. I believe that the thrust vector alignment on the rears was knocked off by the new rubber.

That reminds me... I've got to buy snow tires for the Cayenne. Poop, winter sucks.