This toon isn't about style!
I think Toxic-Stickman is missing the point of this story line. These robots as shown are very powerful, they don't need to look like an lexus to kick ass. Being that the story line pits these bots as old war machines abandoned that would give enough explanation for the way they look!
Have you even watched all the other episodes? This series is one of the best on New Grounds and it keeps getting better.