This is the OLD COMMAND My newer copied one is below under "public OnPlayerCommandText(playerid, cmdtext[]) {"
if(strcmp(cmd, "/loco", true) == 0) {
	SendClientMessage(playerid, COLOR_GREEN, "*** Marker to AutoLoco Set");
	checkpoint[playerid] = AUTOLOCO;
	SetPlayerCheckpoint(playerid,2644.6550,-2003.5380,13.1840,4);
return 1;
}

This part is under public OnPlayerEnterCheckpoint(playerid) {
printf("OnPlayerEnterCheckpoint(%d)", playerid);
	switch (checkpoint[playerid]) {
		case AUTOLOCO: {
			DisablePlayerCheckpoint(playerid);
			SendClientMessage(playerid, COLOR_RED, "*** Welcome to AutoLoco Lowrider.");
		}
	}
return 1;
}

THIS IS THE NEW ONE FOR WANGS AUTOS
Under "public OnPlayerCommandText(playerid, cmdtext[]) {"
if(strcmp(cmd, "/wang", true) == 0) {
	SendClientMessage(playerid, COLOR_GREEN, "*** Marker to Wangs Autos Set");
	checkpoint[playerid] = WANGS;
	SetPlayerCheckpoint(playerid,-1968.9910,294.1454,35.1719,4);
return 1;
}

This is under public OnPlayerEnterCheckpoint(playerid) { But under the above command for /loco
public OnPlayerEnterCheckpoint(playerid) {
	printf("OnPlayerEnterCheckpoint(%d)", playerid);
	switch (checkpoint[playerid]) {
		case AUTOLOCO: {
			DisablePlayerCheckpoint(playerid);
			SendClientMessage(playerid, COLOR_RED, "*** Welcome to Wangs Autos.");
		}
	}
return 1;
}