No, they are not the *exact* same thing, but very similar. Factory glass roof cars have a different stamping for the roof to allow for the glass and use metal filler panels fore/aft of the glass to account for build variance (I believe). The factory glass panel is a double-layer of glass w/ a safety laminate in the middle (like ours), but I do not believe the lam has the same solar absorbing characteristics as ours, which is why they included a sun shade. Because of the solar properties of the lam we use, a sunshade is not necessary as you don't feel the heat from the sun.