This is a concept of what the SD40 might look like if it were offered today in the ACe configuration. Note the trademark "porches" on either end. This unit would be entirely plausible as the V-12 version of the diesel engine would be six feet shorter than the V-16 in the SD70 and offer the same 3,000 horsepower as the original SD40 with significant fuel savings and greater tractive effort from the AC drive motors. This unit might be bettered suited for shortlines or other applications that don't need 4,000 Horsepower. This was built by heavily modifying and shortening stormchaser7992's SD70ACe model.