Adding a fifth tire to the normal rotation mix also creates a serious additional headache because you need to either move or reprogram the TPMS sensor, assuming the tire is already mounted on a rim.
I did buy fifth tires for both summer and winter sets in the past year, but that was due to a size change for summer and wanting to have a proper winter spare for winter.
I did buy fifth tires for both summer and winter sets in the past year, but that was due to a size change for summer and wanting to have a proper winter spare for winter.