My 1/18 buggy is moving very fast. I think it is about 20-25km/h at top speed and have to use about 1/3-1/4 throttle to control through my FPV monitor. When I am driving under the chair, it is really a challenge. I have to drive slowly so I can avoid the legs of those chairs. It took me 10 mins to get used to control via the camera video. But after that much practice, it is much easier to drive around the room!