Quietly spoken but with a cheerful personality, Jules Bianchi was a popular figure inside the sport, although perhaps not widely known outside Formula One. He was considered to have consistently outperformed the British driver Max Chilton at Marussia, and had been tipped to succeed the unsettled former world champion Fernando Alonso in the Ferrari team, for whom he was a test driver.
The son of a family of Italian descent, Jules Bianchi was born in Nice on August 3 1989. His father Philippe managed a karting track near Marseille, where young Jules made his debut behind the wheel aged three. He was racing by the age of five. At 13, he was signed up by Maranello Karting, but moved on in 2007 and raced in French Formula Renault, winning five times and finishing the season as champion.
In 2013 he made his full debut in Formula One with Marussia (now known as Manor Marussia), replacing Luiz Razia.
Bianchi finished ninth in the Monaco Grand Prix in May 2014, earning Marussia their first world championship points. His drive through the narrow streets and tight hairpin bends was acclaimed as a mixture of flair, steely determination and panache - just the traits that observers had spotted in him when he was being touted as a future star of the sport five years before.
It was undoubtedly the young man's finest hour in Formula One. On the streets of Monte Carlo, a dozen French journalists crammed into the modest Marussia motor-home and sang La Marseillaise at the top of their voices, banging on the table for emphasis.
In the aftermath of Bianchi's accident last October, motor racing's governing body, the FIA, announced the introduction of a "virtual safety car" which slows drivers down in yellow flag conditions, and recommended the introduction of a new "four-hour rule", under which races (other than night races) must start four hours before sunset or dusk.
Some drivers claimed that bad light was an issue in Bianchi's crash at Suzuka.
Jules Bianchi, who was unmarried, is survived by his parents, brother and sister.
- The Sunday Telegraph