Using a building hoist to lift a car is not recommended. Building hoists are designed for lifting materials and equipment in construction settings, not for vehicles. They may not have the appropriate safety features or load-bearing capacity for a car. Attempting to lift a car with a building hoist could result in damage to the car, the hoist, or even personal injury. For lifting a car, it's best to use a vehicle-specific lift or a hydraulic lift designed for such purposes, ensuring safety and proper support.