Pour the whipping cream into the bowl of an electric mixer. Add the granulated sugar and vanilla. Beat on a higher speed until the cream is at the same stiffness you would want for whipped cream. Add the cream cheese, Nutella, and powdered sugar and mix until well incorporated. Pour the pie filling into the pie crusts, and place the pies in the fridge to chill for 4 hours, or put them in the freezer for an hour. Just before serving, make some whipped cream. Place the whipping cream, powdered sugar, and vanilla in a bowl of an electric mixer. Beat on a medium speed until medium peaks form. Spread on top of the pie, and slice and serve.