E-body convertible door glass ( pictured by poster ) is same Cuda and Challenger, identifiable by squared front top.
E-body hardtop door glass is the same Cuda and Challenger, identifiable by rounded front top corner.
That is the easiest way to spot the difference in the two
Hardtop 1/4 glass is different Cuda verses Challenger.
And... convertible 1/4 glass is different Cuda verses Challenger... and both are different than hardtop.