C# generic "where constraint" with "any generic type" definition?

Let me give example:

1. I have some generic class/interface definition:

   interface IGenericCar< T > {...}

2. I have another class/interface that I want to relate with class above, for example:

   interface IGarrage< TCar > : where TCar: IGenericCar< (**any type here**) > {...}

Basically, I want my generic IGarrage to be dependent on IGenericCar, regardless if it's IGenericCar<int> or IGenericCar<System.Color>, because I don't have any dependency to that type.