Oh, what controller are you running? This motor doesn't work as well as it should with a Mamba Max. It will work well with either a Quark or MGM Compro.

I do think that it would be a good motor for a buggy. It's plenty fast enough for running on a track, with the proper gearing. You just won't be able to attain any insane speeds with it. I think that you'd need to go to 6S or higher for insane speeds with this motor.