Preheat oven to 350 °F. Lightly oil a 13×9×2-inch pan.
In a large mixing bowl, combine apples with sugar, raisins, and pecans; mix well. Let stand for 30 minutes.
Stir in oil, vanilla, and egg. Sift together flour, baking soda, and cinnamon; stir into apple mixture about 1/3 at a time, stirring just enough to moisten dry ingredients.
Turn batter into pan. Bake 35 to 40 minutes, until a toothpick inserted in the center of the cake comes out clean.