they are a little bit "bendy" chassis wise, out of the box for my liking, this is pretty much cured with the alloy brake seat hop up and a couple of other home made mods make them very durable. or the jt racing chassis is the 100% cure to flex.

as standard they dont wheelie, no, due to the layout of the engine etc. u will grow tired of wheelies anyway. the short wheelbase makes them look small next to other trucks, and u will probably get some flaming over that, but wait to see their faces when u nail the throttle - no wheelie, no fuss, just very rapid acceleration that keeps going and going! i like being the underdog and kicking ppls ass!

when u get the cash its worth going to an 18 tho, a 21 is a bit much for it. but remember its smaller and lighter than most trucks, which pays off in the handling too, especially if u get the adapters to fit the tmaxx wheels. wheelies with a good 18 are poss, if thats ur thing. oh and tyres and shocks are worth upgrading too.

if u dont find out all u want to know on this forum then check out www.wildhobbies.com there is a lot of info in the forum on there in the archives.

forgot about grass: so long as the grass is quite short, below 2 inches, the u should be ok, tho i have heard that all the traction u get can load a nitro engine quite heavily and possibly cause overheating probs. i have never had a prob with short grass with my rally tho, but its worth bearing in mind in case it starts to run badly on grass and ur not sure why.

hope all that helps. cen trucks are generally underated in my humble opinion, they do need a couple of mods to get the best from them, but these are smaller than required on "better trucks" to get the best from those. overall u cant complain for the price, just make sure u can get parts quickly and easily before u buy one - i hate down time.