[JaTochNietDan]

Indeed, simply do similiar but add on to the Z co-ordinates

pawn Код:

public OnPlayerKeyStateChange(playerid,newkeys,oldkeys)
{
  if(IsPlayerInAnyVehicle(playerid))
  {
    if(newkeys &= 4)
    {
      new Float:ZAngle,Float:X,Float:Y,Float:Z,vehicleid;
      vehicleid = GetPlayerVehicleID(playerid);
      GetVehiclePos(vehicleid,X,Y,Z);
      GetVehicleZAngle(vehicleid,ZAngle);
      SetVehicleZAngle(vehicleid,ZAngle);
      SetVehiclePos(vehicleid,X,Y,Z+2);
    }
  }
  return 1;
}

Since we are using GetPlayerVehicleID(playerid); so much, I've used it just once in the script and stored it in a variable for use instead of calling it every time