Madison was a British kit car brand built by Madison Sportcar Co. of Sudbury, Suffolk, England. The car first appeared in 1980. In 1990 a newly formed company took over its production from GP Projects. The Madison used Ford Cortina running gear, including the chassis and engines. It was offered as a roadster and a coupe, and from 1998 also as a 2+2. A convertible and a hardtop were in…