Spray 9-inch glass pie plate with nonstick cooking spray; set aside.
Combine 3 cups coconut, Spread and brown sugar in medium bowl. Press into prepared pie plate. Freeze 10 minutes.
Scoop 1/2 of the Breyers® Natural Vanilla Ice Cream into crust, smoothing to form even layer; sprinkle with 1/2 cup coconut. Scoop in remaining Ice Cream, smoothing to form even layer. Freeze 2 hours or overnight.
Beat heavy cream with Breyers™ Caramel Flavored Ice Cream Sauce in large bowl with electric mixer until stiff peaks form. Spread on Ice Cream or, if desired, spoon into pastry bag with star tip attachment and pipe onto pie. Sprinkle with remaining coconut. Freeze 1 hour or until ready to serve. Drizzle, if desired, with additional caramel topping.
TIP: For an even easier prep, use a prepared graham cracker crust.