A new retail version of Rocket League is coming to store shelves on August 28. Called Rocket League: Ultimate Edition, this version of Psyonix's popular sports game features 16 DLC Battle-Cars and a collection of cosmetic items.
Rocket League: Ultimate Edition includes the DLC that comes with the original game--Chaos Run, Revenge of the Battle-Cars, and Supersonic Fury--and the four Battle-Cars included in the Rocket League Collector's Edition: Esper, Masamune, Aftershock, and Marauder. The Ultimate Edition also adds the Batman v Superman: Dawn of Justice Car Pack, DC Super Heroes DLC pack, and the Proteus, Triton, and Vulcan Battle-Cars. All of these updates come preloaded on the disc or cartridge, so you won't have to punch in a code to download all of the cars and add-ons.
The Batman v Superman: Dawn of Justice Car Pack includes the Batmobile from the film. The Batmobile has proven to be one of Rocket League's most popular Battle-Cars--its wide and flat hitbox makes it easy for players to dribble past opponents, whether on the ground or in the air. The pack also includes three antenna flags, each dedicated to one of DC Comic's famous trinity: Batman, Superman, and Wonder Woman.
The DC Super Heroes DLC Pack adds the Batmobiles from 2012's Dark Knight Rises and 1989's Batman. The two Battle-Cars haven't seen much popularity in Rocket League's competitive scene. The same can be said for the Proteus, Triton, and Vulcan.
The Octane, Dominus, and Breakout--as well as their updated models the Octane ZSR, Dominus GT, and Breakout Type-S--continue to be popular in competitive play for their balance of hitbox height, width, and length as well as their tight turn radiuses. As said before, the Dawn of Justice Batmobile is also one of the top choices for competitive play. Mantis, which has a similar hitbox and turn radius to the Batmobile, is beginning to rise in popularity as well.