User blog comment:Guy Bukzi Montag/Asphalt 8 Myths: Cards Come to Those Who Have Them/@comment-32295693-20190124072805/@comment-34918040-20190124193013

@ Elrodionio:

I thought of mentioning that D, C and B class cards could have different drop rates assigned to them, but when I saw the statistics, I saw that it was irrelevant in this case: As vehhicles get more powerful form class D to B, one would have expected D class cards to appear less than C cards, but actually their drop rate was even higher than that of C cards, even with an empty intentory, and for all four cards types (tires, suspension etc.).

But you are right in another way: It depends on the boxes you open.
 * , for example, seem to favour class C parts.
 * , on the other hand, seems to have a slightly higher drop rate of class D and B parts.

In the end, the drop rates seem to be quite similar when you consider all box types together, but it highly depends on which boxes you open most.