Races in calendar week 17/2006
All motorsport events on the weekend of 28–30 Apr 2006.
| Circuit | Country | Series |
|---|---|---|
| Curitiba |  Brazil |
|
| Hockenheim |  Germany |
|
| Lausitz | Germany |
|
| Losail |  Qatar |
|
| Magny-Cours |  France |
|
| Zolder |  Belgium |
|