Hi i need help with this!! I have a used 2009 sonata the previous owner put 20" rims on the car. My hyundai dealer is saying that 20" is WAY too BIG for a sonata and i need to change it back to 17" or 16" to get more life out of my car and to prevent pre mature wear and tear...my dealer says i have to pay to get the rim size changed back to 17" which is alot of money then buy 4 new tires on top of that which is more money...my QUESTION is what is the real process to down size? Can i just buy new tires and put them on there or do i really have to change the rim itself? How can i do this the cheapest way possible? Should i go only to my hyundai dealer or go to someone eles because i think they are just trying to get more money from me!!