 At the time of season one, Spike Witwicky is about 14 years old. His  love interest, Carly (introduced in season 2), is about a year older  than him. Generally speaking, the Autobots have blue eyes, and the  Decepticons have red. There are exceptions, though. Some include:  Swindle (purple), Thrust (yellow), and Motormaster (purple). The  Autobot called Broadsides character model was totally overhauled  halfway during season 3, so it would more closely resemble his toy.