Heat oven to 350°F. Grease and flour bottom only of 9x5-inch loaf pan. In large bowl, combine brown sugar, pumpkin, oil, apple cider and egg; mix well.
Lightly spoon flour into measuring cup; level off. Add all purpose flour, whole wheat flour, baking powder and cinnamon; stir just until moistened. Stir in nuts and raisins. Pour into greased and floured pan.
Bake at 350°F. for 55 to 65 minutes or until toothpick inserted in center comes out clean. Cool 10 minutes. Remove from pan; cool completely. Wrap tightly and store in refrigerator.