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
Car model convertible body styles). Similarly, some models have a single engine/powertrain specification available (eg the Chevrolet Volt), while other models have multiple powertrains available (eg the Ford Mustang, which has been produced with inline-4, V6 and V8 engines). In some cases, a manufacturer has marketed a body style as a separate model — for example the Volkswagen Jetta and the BMW 4 Series, which are based on the Volkswagen Golf and BMW 3 Series platforms respectively. The same car model may be sold by the automaker in different countries under different model names. Examples includeMitsubishi Pajero / Montero, Mazda MX-5 /