Englebert started in Formula One at the 1950 Monaco Grand Prix, with French Simca-Gordini drivers Robert Manzon and Maurice Trintignant. During the 1957 Mille Miglia, driver Alfonso de Portago, his co-driver, and nine spectators were killed when de Portago's 4.0-litre Ferrari 335 S lost control after suffering a blown tyre.
Englebert entered Formula One at the 1950 Monaco Grand Prix with Simca-Gordini teammates Robert Manzon and Maurice Trintignant. In 1957, during the Mille Miglia, driver Alfonso de Portago, his co-driver, and nine spectators were fatally injured when de Portago's Ferrari 335 S crashed after a tire blowout.