The story
Promot was operated by Ośrodek Techniczno–Zaopatrzeniowy based in Warsaw, Poland. It manufactured competition, rally, (Junior 250) and motocross (MR and MC) motorcycles with 175, 250, and 300 cm3 engines. In 1967, it manufactured its first open-wheel race car, Promot-Rak 67. In 1970 it began development of the prototype racing cars for Formula Polonia. The first car for that series was Promot Polonia I, which manufacture began in 1974. In 1979 the company presented the next series of that car, Promot II, which could race in Formula Polonia and Formula Easter races. In 1984, it presented the third series of the car, Promot III, which was manufactured until 1986, and was the last open-wheel car manufactured by a Polish-based company. In total 62 Promot cars had been manufactured.
From Wikipedia’s article on Promot, shared under CC BY-SA 4.0.3