You know the "Car Editors" which BMW, Mercedes Benz and VW is using?
My company needs the same editor but with various can interiors. Like BMW M3, M4 and so on.
We upholster car seats, consoles and so on.
We would need a interior editor where the customer can choose various leather types, colors, stitches and so on.
We could do a milestone for the Editor itself and each milestone for each car we would need.