Inspired by Death Race?
For example, here is a car from that movie. http://images2.layoutsparks.com/1/242831/death-race-car-fire.jpg
The picture isn't perfect though, the whole angle of it all makes the miniguns look weird. The left minigun is what makes this problem so obvious. The way it sticks out likes that looks weird. If it had been more like the one to the right i think it could've looked better.
Still. 9/10 from me, well done.