It was initially uncertain that the South African Grand Prix would go ahead due to the 1973 oil crisis, but it did so, albeit at the end of March rather than at the start of the month.
While driving his Shadow-Ford in a test session before the race, Revson suffered a front suspension failure on the outside of Barbecue Bend and crashed heavily into the Armco barrier, the car bursting into flames.
[citation needed] The two Lotus cars of Ronnie Peterson and Jacky Ickx tangled shortly after the start with the incident also involving Jochen Mass and Henri Pescarolo whilst Tom Belsø's race lasted no more than a few hundred yards due to clutch failure.
Lauda led a train of cars consisting of Carlos Reutemann, Clay Regazzoni, Jody Scheckter and James Hunt, whose Hesketh was suffering vibration problems.
On lap 75, nearly at the finish, Lauda was forced to retire with ignition problems and low oil pressure, handing the lead to Reutemann.