THere has been no comparison between the two motor yet.
I have one and love it but have never run a genuine neu. i would get the CC version because it has the same or better qualities on paper as the genuine
Benjamin White
R/c Monster Team Driver
Jq the car, LST, Sportweks turmoil pro
Unconventional Techniques, Superior Results
However, the 2D, 1Y and 1.5D are all considered too fast for racing by most people. There is a 1/8 electric thread in the rctech forums thats about 500 pages long. When the thread was 200 pages long, everyone had the 1.5D in their signatures. About 200 pages later, they realized the 1.5D and even the 2D were too fast and now just about everyone has switched over to the 2.5D.
For backyard bashing, I will end end up getting the 2650 motor. I think it will be worth the wait.
Check out my custom converted 8ight:
Sub 7lb, lowest CG of any 1/8 buggy