Now I have an accelerometer MOD, which is a great improvement, I noticed that when driving backward, if your speed increases the accelerometer shows a slow down and vice versa. I saw this at Sandpatch during shunting.
Sadly it's not the mod that causes the issue, it's the fact the HUD doesn't seem to realise that you're going backwards.
I agree, the Mod is just visual, it replace a graphic element but has no influence at the game logic, but since the original accelerometer is not usable at all, I never saw it before.