Before 1924, French manufacturers were hampered by most world record attempts being held outside France on speed rings at Brooklands (Great Britain), Indianapolis (United States) and Monza (Italy). The opening of the Montlhéry race track in October 1924 changed all that. Louis Renault charged Robert Plessier, who worked in the testing shop, with breaking records and Plessier chose American J.A. Garfield as his number two. The pair organised the team, oversaw production and even took the wheel in record attempts. A dream partnership was born.