Kickstart prefers working alone, especially now the Decepticons are scattered and actively hunted by the Autobots. Jaded and tired, he'd rather hunker down and hide, but perhaps Megatron's return can convince him to make a stand once more.

Kickstart is irritated by everybody - the Twins' childishness, Starscream's optimism and Shockwave's judgement. Megatron's return (and the fact he remembers him and gives him a choice) seems to inspire Kickstart to be better.

Kickstart transforms into an Earth sports car.

VOICE NOTES

Kickstart definitely has a rougher quality to his voice and would have an English accent.