I got one of these Ertl Big Farm Peterbilt grain haulers yesterday. My parents also went into a thrift shop looking for toys for me and came out with a Bruder Mack for $7.50! I guess I am still a spoiled little child.... Anyway, before I ordered the Ertl I did some searching but couldn't find much in the way of pictures or video on them other than the promo stuff so here is a video showing it beside the Bruder and KH.
http://youtu.be/WfUw0onMKcE