function autoEngineeringCompany(arr) {
    class AutoEngineeringCompany {
        constructor() {
            this.brands = {};
        }

        addProductionData = ([brand, model, count]) =>
            this.brands[brand] = { ...this.brands[brand], [model]: (this.brands[brand]?.[model] || 0) + Number(count) };

        displayProductionData = () =>
            Object.entries(this.brands).forEach(([brand, models]) => {
                console.log(brand);
                Object.entries(models).forEach(([model, count]) => console.log(`###${model} -> ${count}`));
            });
    }

    const company = new AutoEngineeringCompany();
    arr.map(e => e.split(' | ')).forEach(e => company.addProductionData(e));
    company.displayProductionData();
}