 Based locally in Tours, Rolland-Pilain entered three cars, two of which were improved versions of the straight eights raced in 1922 and the third was one of last year's chassis fitted with a new straight six to be driven by Jules Goux but it did not start.Bugatti entered their new highly slipstreamed "Tank" model based on the Type 30, featuring an all–enveloping body.While this gave superior aerodynamic efficiency, the bodywork blocked the drivers' view of their tires, and the cars were also hampered by a short wheelbase and narrow track width on the winding and bumpy circuit.