Damaera said:
No, both their mannerism and grammar are different.
madman121 said:
its speculated that the normal ssj forms we all know from dragonball z are not real ssj forms but that the ssj4 form is the real form of full super siayajin note vegeta talking about the legendary ssj you see an oozaru in his refrance aka golden oozaru of the super saiyajin so stating this gold hair is just an explosion of inner power nothing more than the ozzaru trying to escape from the body but only theres no tail for the real transformation to begin
post your views on this matter
Like I stated before, Dragon Ball GT isn't considered canon as it wasn't based on any works by Akira Toriyama. The only involvement Akira Toriyama had with Dragon Ball GT was character designs.
Now, in regards to the scene in which Vegeta was talking about the SSJ of legend while witnessing Goku's fight. During Vegeta's dialog, we see a silhouette of an Oozaru with a yellow outline appear behind Vegeta. Many claim that the silhouette is actually a Golden Oozaru - the form Goku underwent prior to achieving SSJ4 in Dragon Ball GT.
But that would make absolutely no sense as Dragon Ball GT wasn't even in planning at this time. Not to mention that scene in the anime wasn't in the manga. While there were a few panels of Vegeta wondering if Goku had fulfilled the legend, there was no silhouette of an Oozaru to be found.