Preheat the oven to 325°F. Spray a 9-inch bundt pan with nonstick cooking spray (silicone or metal pans both work). Set aside.
Whisk together the flour, baking soda, apple pie spice (or ground cinnamon and cloves if using) and salt in a medium bowl.
3 cups all-purpose flour, 1 teaspoon baking soda, 2½ teaspoons apple pie spice, ½ teaspoon salt
Beat together the granulated sugar, brown sugar, oil, vanilla and eggs in a separate, large bowl, using a hand mixer or stand mixer on medium speed until well combined.
1½ cups granulated sugar, ½ cup light brown sugar, 1½ cups vegetable oil, 2 teaspoons vanilla extract, 3 large eggs
Gradually add the dry ingredients to the wet mixture, blending until just combined.
Add apples to a medium bowl and toss with lemon lime soda or lemon juice. Stir in apple pie spice (or ground cinnamon if using). (See note below about tossing apples in flour to more evenly distribute the apples in the cake.)
2 small granny smith apples, 1 Honeycrisp apple, 1 tablespoon lemon lime soda, 1 teaspoon apple pie spice
Gently fold the diced apples into the batter by hand, being careful not to overmix.
Pour the batter into the prepared bundt pan and place the pan on a large baking sheet.
Bake for 60 to 75 minutes, or until an inserted toothpick comes out with a few moist crumbs.
Remove from the oven and let the cake cool for 15 to 20 minutes in the pan before inverting it onto a wire rack to finish cooling. While it cools, start prepping the caramel glaze.