[Andreas1331]

I'm going to guess you created an enum for the trailers at the top of your script.
So you could make something like this.

Код:

enum carTrailers // Enum for carTrailers variable
{
	TrailerOne,
	TrailerTwo,
	TrailerThree,
	
	TrailerFour,
	TrailerFive,
	TrailerSix
}
new Cars[carTrailers];

and then make.

Код:

CMD:command(playerid, params[])
{
	new CarCheck = GetPlayerVehicleID(playerid);
	if (CarCheck == carTrailers[TrailerOne])
	{
	    // Put your function here
	}
}

I think this should work, but not sure as you're not sitting inside the trailer obviously.