The heavier the vehicle: Do you currently have car insurance? Insurance is mandatory to drive in Ohio Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question The heavier the vehicle: Answers The less the brakes will need to work. The harder the brakes will need to work. The louder the brakes will sound. The more noise the vehicle will make. Explanation The heavier a vehicle is, the harder the brakes must work to slow or stop it.