Thanks a lot guys, I appreciate your help.
In the meantime I found this website:
They are talking about $250 (us dollars) for 2 keys. But then I have to get the immobilizer thingy to get the VIN number, and for that I need to get into the car. At the moment the car it's parked in the street. So I'd need to break the car window or break the door. I already feel like I am playing GTA ?.
So now the sub problem would be: how to break into my car without key. I guess I should find a forum of gangsters.
Have an awesome weekend