[Kaliber]

Do it like this

PHP код:

//@top of the script:
#define MAX_INFERNUS 5
new max_cars[MAX_PLAYERS char];
//OnPlayerConnect
max_cars{playerid}=0; //So it get resettet
//Then in the Command:
new Float:x,Float:y,Float:z,Float:a;
if (max_cars{playerid} >= MAX_INFERNUS) return SendClientMessage(playerid, -1, " You can't spawn more than 5 Infernus car! ");
const distance = 5;
GetPlayerPos(playerid,x,y,z),GetPlayerFacingAngle(playerid,a);
x+=distance*floatsin(-a,degrees),y+=distance*floatcos(-a,degrees);
max_cars{playerid}++;
CreateVehicle(411,x,y,z,1,1,1,1000);