Well, my sons B-day was two days ago and my wife and Ipurchased him this toddler RC car. My wife finally unboxed it today while I was finishing some honey do's.
Now, close your eyes......imagine hearing something similar to your tank in a home full of kids.....and your no where near it. Got the image yet? I'm sure your seeing red. That was me.
Anyway, when a toddlers toy sounds strikingly similar to your tank.....it's time to consider an elmod.
http://www.youtube.com/watch?v=_zLw0yEkWhA