ok ... This wheel of the day database is specifically for Asia/Japanese version .. not PAL or US.
In PAL/US version, it named "Today's special" or "Used wheels" or whatever
however this japanese/asia set is about 70% identical to US/PAL version. The cycle has 1 or 2 set less in US/PAL version
If you are looking for specific set, just go look for the database and find a set which is similar to the set you are having today, then you count and pass numbers of day to reach the specific set you are looking for, so you can go racing or do whatever you want to without buying useless wheels
You cannot equip any wheel on any race car and some special car (Nike car)
you know what ... I was trying to put 190E race car rim to 190E EvoII before I made this database, too bad they didn't include it, but they did put some Opel and Audi race car wheel in the database ... I was so mad
camaroboy > you don't wanna subtract 13 everytime, you may find out you need to subtract more in the future. Because the cycle length is different, therefore first month you will encounter the set is correct, but later you need to subtract more and more, if you know what I mean.