Is there a good way to reposition constraints in DOPs?

I'm trying, in particular, to build a simple car out of a box body and 4 wheels.
I bring each item in as a separate RBD Object to get the best collision surface.
Then I have to create hinge constraints for each wheel.

But now I'd like to go back to the object level and move my top level car to some new starting position.
However, the constraints are set up in world space so they go completely bad at this point. I would need to recalc their location every time I move the car? Is there an easier way? Can I just channel reference the obj transformation from within DOPs?

Heya

Has a similar problem. You could contrain to animation, or contrain it to a point (so instead of world poisition, just constrain to point(“../../obj/etc”,pointnum,“P”,0)

Hope that helps, im fairly sure theres a million ways to do it, im just not aware of more than a millionth of them:p

Thanks for the idea Axx.
I think I did find a solution that was acceptable that is similar to yours.
Does require a bunch of channel references on a bunch of parameters but in the end seems to work.
Still seems like exploiting parenting somehow would be nice. But I can't see a way.