I bought a new Exceed Forza, 10Th scale buggy, it has a VX.18 engine in it, I have run the engine one time at idle and the clutch started smoking, the out side clutch housing turned blue. So I pulled the air filter off, and used my thumb to shut the engine down. I don't know what happened to it? but I sent it back for a replacement car. It did all this in about 45 seconds, at first it started good was running rich and Idling OK! and all of a sudden went lean and burned the clutch up. So I think it did anyway. I'm very disappointed to say the least. The buggy body had no holes drilled for the receiver wire, and the body was not notched for the steering rods. The body sit on the chassis crooked. had to reroute the fuel lines so their was no contact rubbing the body. The throttle would not open but part way, had to adjust that. The brakes were rubbing when you rolled the buggy had to adjust that. I was gonna be cool with the receiver had no wire and the body not cut, but not when the clutch burned out on start up. I have had a lot of cars, airplanes, boats and never had problem's like this.