Hi everyone,I recently bought my car and I am confused about the wheel sizes,my wheels are original wheels which I understand to be 19inch but when measured the diameter is 20.5 inches and I am trying to source a spare wheel instead of the dreaded compressor which I had on my previous car,the overall size with tyre is 25.5 inches,not sure what size wheel I am going to need wether it be spacesaver or not,can anyone help.