Vehicle Speed

Hey, i need an way to get the Vehicle Speed of an Car in km/h
i tried something with get velocity but i didnt find an working way,
i need it clientside so i can use it in an hud.
I hope you can assist me a bit…

Well, GetVelocity is the only way.

You will have to do :Length() on the velocity vector and then do some maths to convert from Hammer Units to KM/H, there are formulas/data available online on the conversions, on the Valve Developer Wiki for one.