[Sascha]

to detect if the player used G use:

pawn Код:

OnPlayerEnterVehicle(playerid, vehicleid, ispassenger)
{
    if(ispassenger(playerid))
    {
        //write code here
    }
    return 1;
}

as far as I know you can't detect the "G" key as you could e.g. detect the "ENTER" key...
G is not used in the singleplayer and you can't change the key to any other...

Edit: hehe ironboy was faster