Very shortly afterwards, the car was fitted with a Renault 8 Gordini engine, and achieved several excellent results in Formula Libre in the hands of Roger Cohen, the "works" driver.
It even took overall honours against Formula 3 single-seaters!

The commercial success of the Barzoi shouldn't detract fron its competition success: Francois Lacarrau took second place in the 1968 Grand Prix de Paris at Montlhery, against such well-known names as Servoz-Gavin, Wicky, Jungenet etc armed with Matra 470BRM, Ferrari, Porsche 906's etc !
Sport-Auto remembered it as a "David versus Goliath" race, with the little Barzoi, powered by a 105 Bhp R8Gordini engine,
up against cars with 250 to 400 Bhp!

In 1970 Marcel Fournier retired, leaving Andre Marcadier to continue working away. In the same year he produced a two-seater sports-racer specifically for competition, and which used the Barzoi as its base.
This model, called Can-Am after the American cars which inspired its appearance, was the first of a series which allowed talented amateur drivers to have a real competition sports racer at a budget price.
Thus, at the 1975 French mountain-climb championships, Marcadiers, powered by Renault 8 Gordini 1300cc engines,
finished 4th and 5th, up against Formula 2 single-seaters and 2-litre prototypes!
The 1978 season brought even greater success in what was already becoming a more "professional" discipline: Marcadier's final creation, an elegant sports racer powered by a 300 Bhp Ford-Hart 2-litre engine,totally dominated its class and even worried the Formula 2 single-seaters which, due to their
handling and low weight, were the quickest cars on the mountains.
(The driver was not altogether unknown: Roger Rivoire had been an apprentive at Fournier-Marcadier who, in 1974, had come very close to becoming French mountain-climb champion).The low-budget but talented Marcadier/Rivoire combination won its class on 11 out of 14 events:
in the 3 other events the car was using an engine which was "past its prime".
In early 1967, a brilliant develpoment of the open-top sports car emerged from the Lyon workshops: this was the unforgettable Barzoi.It took its mechanicals from the earlier model, but had a roof and doors incorporated, to cater for buyers who wanted a more usable car. Like the Mercedes 300SL,
it had gull-wing doors because of its tubular chassis and low height