Car part - Fiat - 1940-1950

Tubular chassis of a Topolino Sport Barchetta, a rare and original item, built by some craftsman in a professional manner, mechanically heavily retrofitted and elaborated for the era with all original details never replaced, Fever twin-carburetor collector with Weber carburetors complete with filter, additional water pump, quick-fill oil cap, sport type Cisitalia or Siata, rack-and-pinion steering box with a short ratio, enlarged front brakes, surely Fiat 1100, with cooling vents, brass radiator which is a true work of art, gearbox with a rear lever never seen before, a truly rare item of the highest professionalism and of exclusively racing character, lowered tubular frame built on the front Topolino C section and rear axle Topolino A, there are some body panels, front hood, and side fairings, and some spare parts in the box as seen in the photo.
Rare item, surely built by a superb craftsman of the era since the wheelbase is also 12 cm shorter; in fact the wheelbase of this Topolino sport chassis is 1880 mm compared to the 2000 mm of the original Topolino.