Is it me, or do the rear wheels look like they are way outside the fenders.
It may have a newer model rearend that's wider.
Also,
I think as cb1965,
The only chevy bodypart may be just the tailgate.
My truck is a mix-breed.
The cab, hood, & bed is chevy.
The frame, grill, and front fenders are gmc.
I never thought about calling it a hybrid.