function vehicleProduction(arr) {
    class VehicleFactory {
        manufacturers = {};
        addRecord = ([man, mod, qty]) => ((this.manufacturers[man] ||= {})[mod] = (this.manufacturers[man][mod] || 0) + +qty);
        showRecords = () => Object.entries(this.manufacturers).forEach(([man, mods]) => {
            console.log(man);
            Object.entries(mods).forEach(([mod, qty]) => console.log(`###${mod} -> ${qty}`));
        });
    }
    const factory = new VehicleFactory();
    arr.forEach(e => factory.addRecord(e.split(' | ')));
    factory.showRecords();
}