By default, Euro Truck Simulator 2 enforces a strict internal speed limit (usually 90 km/h), which can be toggled in the gameplay settings or via a Server Config File . However, simply turning off the limiter isn't enough to reach 200 km/h because standard truck engines and gearboxes aren't built to produce that much horsepower.
A stock DAF XF with a basic chassis will be a nightmare at 200 km/h. Optimize your rig first:
Slide your Braking Intensity setting up to compensate for the massive kinetic energy your truck generates at 200 km/h.
Search for keywords like "speed mod 200 km/h" or "physics engine modifier" . Click on the highest-rated mod.