If i was you i would get the mammoth. 52mph out of the box on street. 46mph out of box on dirt. i love it.
here r sum vidz-
http://media.hobbypeople.net/video/rcxmammoth1.wmv http://xtm.globalhobby.com/video/2003mammothweb.wmv http://dicevideo.com/paul/watermammoth.wmv
http://www.dicevideo.com/rc/mammoth-1.wmv http://dicevideo.com/paul/mammoth2.wmv
And sum close up pic's ( assuming u have never really looked at it very hard)
http://www.hobbypeople.net/specials/mammoth.asp
A couple of reviews-
http://www.hobbypeople.net/review/145615xrc.htm http://www.hobbypeople.net/review/145615rcd.htm
SPECS:
Length, 59.5 cm (23.4 in)
Height, 26.5 cm (10.43 in)
Front Width, 43.6 cm (17.16 in)
Rear Width, 44.3 cm (17.44 in)
Adjustable Wheelbase, 38.9 to 39.4 cm (15.3 to 15.5
Ground Clearance, 8.75 cm (3.44 in)
Weight 11.75 lbs.
the only thing i really think u should do for it out of the box is put thicker shock oil. Probably around 40wt or so.