[DeathOnaStick]

Use CreateVehicle instead of AddStaticVehicle, because you can destroy them with DestroyVehicle afterwards.
You wanna do it like this?

pawn Код:

//OnPlayerConnect
if(pInfo[playerid][pCarid]!=-1)DestroyVehicle(pInfo[playerid][pCarid]);
pInfo[playerid][Carid]=-1;

//In the command:
if(pInfo[playerid][pCarid]!=-1)DestroyVehicle(pInfo[playerid][pCarid]);
CreateVehicle(vehicleid, PosX+1, PosY+1, PosZ, Angle, color[0], color[1], respawndelay);

You can delete it over OnVehicleSpawn (i guess... maybe over OnVehicleDeath, too?! Never tried.)

Don't forget to put the respawndelay in your sscanf code and putting into pInfo. Enjoy.