Bianchi was born in Milan, Italy, but moved to Belgium in 1946 when he was still a child, with his father who was a race mechanic working, before the Second World War, in the Alfa Romeo competition department. His brother, Mauro Bianchi, also became a racing driver. They drove to victory together in the 1965 Nürburgring 500 km. Mauro later won the P1.6 class at the 1967 24 Hours of Le Mans. His grandnephew, Jules Bianchi, who made his Formula One debut with the Marussia team for the season competing under the French flag, also died as a result of injuries sustained in a racing accident.