There's also a chance that you've got lucky with a car. Sometimes the cars at Go-Carts vary a lot with a power. On my last team meeting everyone on a car #6 was winning. It was just much faster than everybody else.
I used two different cars, as there were two sessions.The point I was trying to make wasn't about the fact I came third but rather that you have so much more info and senses when driving in real compared to a simulator.