As far as the old version, I have one since the car came out 3 years ago, maintain it well, and it still is a beast. With all the newer cars out here, kyoshos, 710s ,mtxs, I do not see anyone out there with a noticable advantage. I just lack a little top end but will be replaceing my main engine, the rbx12 that I bought with the car, which still moves on a small to med track.