Henry Ford family sole ownership of the company. By the mid-1920s, sales of the Model T began to decline due to rising competition. Other auto makers offered payment plans through which consumers could buy their cars, which usually included more modern mechanical features and styling not available with the Model T. Despite urgings from Edsel, Henry refused to incorporate new features into the Model T or to form a customer credit plan. By 1926, flagging sales of the Model T finally convinced Ford to make a new model. He pursued the project with a great deal of technical expertise in design of
Tesla Model S up 76% over the same quarter the previous year, and setting a new record for the most cars delivered in a quarter. Global Model S sales passed the 100,000 unit milestone in December 2015, three years and a half after its introduction. A total of 50,446 Model S sedans were sold globally in 2015, making the Model S the world's best-selling plug-in electric car in 2015, ahead of the Nissan Leaf (about 43,000 units). , a total of 107,228 Model S sedans had been sold worldwide since its introduction, ranking as the world's second best selling plug-in car ever after