[Konstantinos]

You first need to close with ")" so strcmp will return a value and then compare if it's equal to 0.

pawn Код:

strcmp(VehicleInfo[i][vOwner],playername) == 0

Note that if VehicleInfo[i][vOwner] is null/empty, it will return false. You can use isnull macro and check if it's not null and then compare to the player's name.

You don't need an array so you know if a vehicle is created or not. If the vehicle doesn't exist, GetVehicleModel returns 0 and there's a native as well which called IsValidVehicle (not defined so you should add it yourself).