⚠️ This still works in the latest patch if done correctly.
If you cannot find a "patched" version, downgrade your game via Steam Betas to version 1.42. The legendary "HGDP 400km/h+" mod still works perfectly on that build. Sometimes, the past is where the true speed lives. euro truck simulator 2 speed mod 400 km h patched
You need an 18-speed or 24-speed transmission mod alongside the speed mod. The default 12-speed lacks ratios for hyper-speeds. ⚠️ This still works in the latest patch
Assuming you’ve downloaded a genuine file, follow this exact process: Sometimes, the past is where the true speed lives
: Developers at SCS Software frequently update the game (current version 1.58 as of 2026). These updates often overwrite or invalidate older .sii modifications, leading players to believe the speed mod has been "patched" out of existence. How to Bypass Current Limits
The 400 km/h mod caters to the latter demographic. It removes the artificial speed limiter (usually capped at 90 km/h in Europe) and adjusts the engine definitions to allow for hypersonic velocities. The appeal is not necessarily about efficiency; in fact, completing a job at 400 km/h is often impossible due to the game's economy. The appeal lies in the absurdity. It is about taking a 40-ton Scania or Volvo and turning it into a land-based rocket ship. It transforms the game into a test of reflexes, a chaotic arcade experience where the laws of physics are mere suggestions, and the journey becomes a high-speed blur of motion blur and graphical pop-in.