1990 CART Series Nations Cup Championship Standings
| # | Country | Points | |
|---|---|---|---|
| 1. |  United States |
312 |
|
| 2. |  Brasil |
151 |
|
| 3. |  Netherlands |
90 |
|
| 4. |  Canada |
39 |
|
| 5. |  Italy |
33 |
|
| 6. |  Colombia |
24 |
|
| 7. |  Belgium |
15 |
|
| 8. |  Japan |
1 |
|
| = |  Finland |
1 |
|
| 10. |  England |
0 |
|
| = |  Australia |
0 |
|
Note: The team championship is not an official IndyCar championship. It is based on own calculations, where the points scored by the two highest-ranked cars from each team are added together for each race.