Category

Number

Combination type

Two drivers

based on one point

1

XA-YA-XB

2

XA-YA-YB

3

XA-YA-XC

4

XA-YA-YC

One driver

based on one point

5

XA-XB-YC

6

XA-YB-YC

7

YA-XB-XC

8

YA-YB-XC