The Talbot Lago T26 Grand Sport (GS) was first displayed in public in October 1947 as a shortened chassis, and only 12 were made during 1948 which was the models's first full year of production. The car was noted for its speed. The engine which produced 170 hp in the Lago Record was adapted to provide 190 bhp (140 kW) or, later, 195 bhp (145 kW) in the GS, and a top speed of around 200 km/h (124 mph) was claimed, depending on the body that was fitted. The car was built for either racing or luxury and benefited directly from Talbot's successful T26C Grand Prix car. As such it was expensive, rare and helped Louis Rosier with his son to win the LeMans 24 Hour race in 1950. The GS replaced the Lago-Record chassis which was named for its remarkable top speed. Having a 4.5-litre inline-6 aluminum cylinder head and triple carburetor from the T26 the Grand Prix cars, the GS was one of the world's most powerful production cars. Chassis details were similar to the Grand Prix cars, but it was longer and wider. It came it two wheelbase lengths -104 and 110 inches (2,800 mm).
Almost all the Talbots sold during the late 1940s came with Talbot bodies, constructed in the manufacturer's extensive workshops. The T26 Grand Sport (GS) was the exception, however, and cars were delivered only as bare chassis, requiring customers to choose bespoke bodywork from a specialist coachbuilder. The GS was a star turn in a dull world and coachbuilders such as Saoutchik, Franay, and Figoni et Falaschi competed to trump Talbot's own designers with elaborately elegant bodies.