The Nitro 4-tec was desihned for one purpose only.... to go fast, and at that it is acceptable, however Traxxas is really askng for a lawsuit, becuase it has very little traction at any speeds...... meaning it handles for crap......
the suspension is flimsy, it is overweight, and there is very little you can do to make the thing stick to the track......
If you want a mid-high end nitro car look at the Kyosho V-one-R, Mugen MTX, Associated TC3 nitro, Trinity Reflex NT, Serpent Impulse, Yokomo GT4..... all are competent, and the Associated, Yok, and Mugen come RTR if that is what you are looking at........