Motor vehicle door

A motor vehicle door, comprising:

• releasable connecting elements;
• an outer module having an outer panel, an inner frame part, an impact support affixed to said inner frame part, and hinges affixed to said inner frame part, said inner frame part being a single-piece diecast part made of a metal alloy;
• an inner module connected to said outer module by one of screwing, riveting, and adhesive bonding, said inner module including:
• accommodation options for door assemblies, a window pane, a pane actuator, and speakers;
• an upper encircling window frame being a single-piece diecast part made of a metal alloy, said upper window frame connected locally to said inner frame part via said releasable connecting elements;
• a lower assembly support sheet connected to said upper encircling window frame, said lower assembly support sheet being a baking-sheet-shaped assembly support sheet having an upper border region;
• and
• said upper encircling window frame having a lower frame part connected to said upper border region of said lower assembly support sheet and defining a longitudinally running hollow support between said lower frame part and said upper border region.