Tougher bullet designs in .38 Special can perform significantly better than .380 Auto after auto glass.
The relatively fragile Critical Defense bullet is not engineered for hard barrier penetration, but expands reliably and has moderate recoil.
These two videos use Clear Ballistics gel, however, I think they demonstrate those points
Hornady claims 11.25 inches of gelatin penetration after heavy clothing
https://www.hornadyle.com/handgun-am...-110-gr-ftx#!/
The standard pressure loading can perform similarly but tends to not expand quite as large or reliably
https://brassfetcher.com/Handguns/38...Selection.html