1965-1966 Triumph 1200 When Engineers Design Economy Car Sales Folder. What happens when sports-car engineers design an economy car? Economy is only the start of the fun. The Triumph 1200 Sedan gest about 35 miles per gallon, costs $1,699, and parking it is easy. The brochure lists out 5 things that tell you it was made by sports-car engineers. Includes specifications on the back. Inside has image of 1200 at sunset and an image of the dash made with fine English walnut.