Solara thanks for the info on the battery thing. I have all 5000 packs and seems like with those you need to do a little modding to get them to fit. I read about the motor thing a little but not 100% clear on why some motors fit and some don't. I'm just not sure what I want to do at this time car wise. I will say that the design is very nice and potential I think could be huge. Sounds like TM would do a little more work on some of those little issues they could have even more people running the car.
Don't get me wrong...the battery part is EASY, just add spacer...it even came with the kit and instruction on how to do so...I just have plenty of ORION pack to waste and on last SAT running 17.5, I used only 1800 mah on a 6 minutes race...either I am very good with my throttle or the whole drive train is so smooth and easy on power...
About the motor issue...it is just difficult to MOUNT the motor, not adjusting the motor, it has plenty of room to move back and forth, just using NOVAK type motor is easier to mount compare to the DUO type motor (the end bell of these motor are different).
Overall....it is a great car, at least, it drives WAY BETTER then I expected or alot better then building it.