The invention comprises a vehicle door handle assembly (10) comprising : - a housing (12) that sits flush against an outer panel (13) of the vehicle, - a rotatable flap housed within said housing (12), said flap extending along and configured to rotate about a rotation axis (X-X) between a rest position and a door opening position, - a mechanical actuation switch generating an electrical signal to be sent to a vehicle door controller to release the vehicle door, The door assembly comprises a cam holder and a cam supported by the cam holder. The cam holder being connected to the flap such that the cam holder is rotatable about the rotation axis (X-X) and that rotation of the flap causes rotation of the cam holder, rotation of the cam holder causing the cam to activate said switch.