from what i know the difference is............the name. lol i got a Jammin' X2 and love it. I picked up MASSIVE time compared to the Losi i used to run. NOT SAYING ANYTHING BAD ABOUT LOSI. just saying that the Jammin' fits my style of racing a lot more than the Losi did. You'll love either choice. It's really stable and easy to drive, and it's easy to drive HARD.