These are supposedly the "mainline" deluxes that would have been sold when the movie came out with Studio Series figures to follow.
As with Airazor, I'm surprised that there is much improvement to be made and could very well fit in with Studio Series toys - maybe Wheeljack moreso than Nightbird - the Nightbird plastics seem more patchy than you would hope for a Studio Series figure. But the VW van Wheeljack looks great!