Whisk flour, baking soda, salt, and cinnamon in a medium bowl until very well blended.
In a separate bowl, whisk the oil, granulated sugar, brown sugar, and vanilla.
Add the eggs, one at a time, whisking after each one.
Switch to a large rubber spatula. Scrape the sides and bottom of the bowl, then add the dry ingredients (flour mixture) in three parts, gently stirring until combined and the batter is smooth.
Fold in the carrots, and raisins.