I have a '97 Civic Coupe and I'd like to replace my anemic 13x4.5 inch spare with the widest spare that can fit in the trunk spare location. As far as I can tell, the largest diameter that should fit is 19.5 inches with a 5 inch width. I'm considering trying to obtain an old 13 inch 1980's rim with a 5 inch width. Im not certain a old small 14" would fit by diameter. Your input is greatly appreciated.