the car is pretty nice...I use a 5 cell hump pack and it works great...I cut the wires to the switch to clean the box up some to also allow for a failsafe..it all fits...other then that mine is bone stock with the vx.16...well except fer the body..lol...I just havent sent the .16 in fer a sh.18 yet..lol...I have a hard enuff time kee[ing tires on it the way it is...