Why Don't All Metro Buses Transform into Intergalactic Robo-Fighters?

I don't know what Bondibots are (I don't speak French), I don't know what they're supposed to be doing when not fighting their way across the galaxy, playing soccer, or jamming on gigantic guitars—driving old people around maybe?—and I really don't know what the hell is going on in this video. All I do know is that it's way better than the last Transformers flick.