Just found two in my garage... Now I remember - They eat up the track on pavement. G/L on the sale. These were awesome (and much cheaper than my 3.3 Revo).
I got ripped, mine didn't come with any extra tracks. Still cheaper than even getting my R/C's out. Every time I get one out I break something that cost over 50.00. I never did tear up one of these, just scratched it up a bit.