* Specific trim level: Different Explorer trims (e.g., XLS, XLT, Limited) might have slightly different aerodynamic features affecting the Cd.
* Modifications: Aftermarket additions like roof racks, spoilers, or larger wheels significantly alter the aerodynamics and thus the Cd.
* Testing methodology: Different testing facilities and methods will produce slightly varying results.
While Ford didn't publicly release a precise Cd for the 2005 Explorer, you'll find estimates ranging from approximately 0.36 to 0.40 in various automotive resources. However, these are approximations and shouldn't be taken as definitive values.