Great, more relatives... We still people arguing whether the "brother" comment by Optimus was supposed to be literal or figurative. (My vote is figurative.) Next we get the "twins" even though we have an already established set in the carto ons. Now you are proposing that Barricade and Sideswipe could be related? Great, its just one big family reunion.
Hey, don't try to make it sound like I want Barricade and Sideways to be related, I'm just throwing ideas around seeing as the look rather similar and since we all know Bay would come up with such an idea and think it is cool.
And I just realised that I did a typo in my earlier post. I meant Sideways of course and not Sideswipe, that would just be stupid.