Allegations of cheating during the 1994 Formula One World Championship

Allegations of cheating were made throughout the 1994 Formula One World Championship. Several Formula One teams were involved, with the main allegations surrounding Benetton Formula. Initially, Benetton was alleged to have been using illegal traction control software to their advantage in races; however, this could not be sufficiently proven by the FIA. A refuelling fire on Jos Verstappen's Benetton car at the 1994 German Grand Prix led to renewed allegations and an investigation by Intertechnique at Benetton's team factory. Following the investigation, the FIA revealed Benetton had been using a fuel valve without a fuel filter, which allowed fuel into the car 12.5% faster than a legal fuel valve. Renewed allegations led to rumours of Schumacher quitting the team, Schumacher would end up staying with Benetton for the 1995 Formula One season, also winning the Drivers' World Championship that season, before joining Ferrari for the 1996 Formula One season where he would stay until the 2006 Formula One season, winning five additional Drivers' titles in the process.

Following the 1994 San Marino Grand Prix, the Benetton, Ferrari, and McLaren teams were investigated on suspicion of breaking the FIA-imposed ban on electronic aids. Benetton and McLaren initially refused to hand over their source code for investigation. When they did so, the FIA discovered hidden functionality in both teams' software but no evidence that it had been used in a race. Both teams were fined $100,000 for their initial refusal to cooperate. The McLaren software, which was a gearbox program that allowed automatic shifts, was deemed legal. By contrast, the Benetton software was deemed to be a form of launch control that would have allowed Schumacher to make perfect starts, which was explicitly outlawed by the regulations; Benetton and Willem Toet, a Formula One aerodynamicist for over thirty years who worked at Benetton until 1994, stated that traction control was legally achieved through rotational inertia. There was no evidence to suggest the software was used.