Help with Rims!!!
 

I need a bit of help, I have a 350Z Auto Touring. I'm looking to buy Rims, and Actually my plans are to buy centerline rims. I'm hearing rumors that the Auto Touring can not hold anything more than 17's does anyone know if this is true? If not does anyone know the measurments for the wheel bolt circle for 18 in rims? also, what should the offset be? Thanks everone, Drive Fast!!