Preheat oven to 350°
Add cupcake liners to 2 muffin tins (If you only have one muffin tin, bake one batch at a time and let pan cool slightly between batches)
Using a stand mixer or handheld mixer, in a large bowl mix together oil, sour cream, and daiquiri mix.
Add pudding mix and stir until smooth.
Add eggs, one at a time, mixing until egg is blended in to mixture.
Add boxed cake mix and blend on medium speed for 2 minutes.
Fill each liner 2/3 full.
Bake for 18-22 minutes or until a toothpick inserted comes out with just a few moist crumbs.
Cool in pan for 5 minutes
Remove the cupcakes from the pan and allow to cool completely on a wire rack.