Here'* the scoop. I have a 2001 Bonny SSEi with the 17" chrome rims. I'm looking to purchase 18" Chrome rims but am on a timeline. They are 5 on 4.5 which I believe is 5X114.3??? Anyway, I'm obviously getting new tires to accomodate the 18" rims.....will they fit is the question? What does the offset mean? Etc....please help..no clue on any of this.