Thanks to [soundwave]
we have the bios for the upcoming Transformers Generations: Fall of Cybertron Autobot Data Disc two-packs, Rewind with Sunder and Eject with Ramhorn. Cardbacks mirrored below:
AUTOBOT REWIND remembers everything. This makes him an excellent spy, though data overload often causes crushing headaches. Luckily, SUNDER is there, to soothe his friend's aching cicuits with the gentle thunder of the dubstep beats he loves.
EJECT honestly believes that the AUTOBOTS and the DECEPTICONS could just agree to resolve their disputes through some friendly competition, then the entire war could be brought to an end. RAMHORN disagrees. He'd rather spike a DECPTICON on his horn than spike a ball in the end zone.