will P215/55/16's fit on my 98'cavi?

Hello, Yes, I believe they can. Here are some more details: http://www.tirerack.com/tires/Compare1.jsp?width=215%2F&ratio=55&diameter=16&vehicleSearch=true&startIndex=0&search=true&pagelen=20&pagenum=1&pagemark=1&x=105&y=5&speed_rating=S&speed_rating=T&speed_rating=U&speed_rating=H&speed_rating=V&speed_rating=Z&speed_rating=W&speed_rating=Y&RunFlat=All Best of luck! CarGrrl

well mine has 225/i think 40/17 so they should fit no problem

just make sure that you don't change the over-all height of the tires. It will throw off your speedo. the best thing I can recomened is talk to someone at a tire shop, They deal with tires all day and there advice is going to be the best.