Given the other items on our list, we are aware that this will be shocking, but 3-wheeled autos have historically failed. But to be honest, the Davis Divan was never given much of a chance. By selling 350 dealerships, the Davis Motor Firm was able to collect $1.2 million for the construction of the car. However, the firm never delivered any cars to the dealerships or paid the employees, which finally resulted in litigation from both parties. As a result, Gary Davis was found guilty of fraud and grand theft, and the company’s assets were liquidated.