Orlando Motors, an American Automobile Company, paid for three (3) cars and consigned them to Mr. Kobby Ayensu in Ghana by a bill of lading; vehicle No. GTB 7084 was one of the three (3) cars, Mr. Kobby Ayensu, as the consignee, took delivery of the vehicles and registered vehicle No. GTB 7084. He later sold the vehicle he registered to Tracy Achiaa. The appropriate change of ownership was then effected. Later, one Mr. Oko Lartey who was claiming interest in the cars, sued Mr. Kobby Ayensu in respect of the cars and immediately went to court and obtained an order resulting in the impounding of the vehicle from Tracy Achiaa. Advise Achiaa. Explain the maxim 'Nemo dat quod non habet' and the exceptions to it.