To start the vehicule, set the RPS above 50 and hold the starter until you hear the engine.
Then set the RPS (around 15 to 20 is fine) back lower and wait a bit for it to stabilize.
Then use the speed reduction to manage the vehicule speed, if you go below 0.8 it can start taking off so be careful.
There is a Do Not Press button, if you use it, it activate the afterburner which will lead to either a donut or a take off.
You can turn using a/d and stop using 1.
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