[Mystique]

Here's just a simple example to show you, I'll be using the infernus as a racevehicle now.

Код:

 new RaceVehicle = 411;
          if(GetVehicleModel(GetPlayerVehicleID(playerid)) == RaceVehicle)
         {
         SendClientMessage(playerid, COLOR_RED, "This vehicle is only for race.");
         }

This should check if the vehicle is ID 411, and if it is it will send you the message.