I have heard for what they are they are not that bad. The main issue is that the steering isn't that precise and that they really need 2 more cells to really perform.
If you are looking into something to race at that scale, maybe pickup a XRAY or the BRP car.
I have 2 Xmods, there okay,like cain said, the sterring is very bad. But overall there fun to play with in your house. I really have no use for them. thinking about selling.
i have 2.......one skyline that the esc fried the other is the black civic........turining radius is about the same as a 1/10 scale but with 6 cells u can spin the rear around quite easy...... ......not bad for 50 buxs and fairly quick too.......main problem right now is replace ment parts are still not avalible so becarefull with them.......also the stock rear diff is weak....i rounded out the shafts twice untill i got the all wheel drive kits with the rear ball diff