The Model T Ford was not actually a real car. It was simply a non-functional model of a relatively unknown car, the "TFord".
Despite not being able to be driven, the Model T sold in millions. This was not a problem, because most of the purchasers could not drive. They simply parked the "Model" car outside their houses to suggest affluence to their neighbours. In many cases, people would show off to their neighbours by sitting in their car and enjoying a light lunch, or reading the Sunday papers.