While significant changes could not be made to cars in 1994, the FIA required all Formula One cars' airboxes to be perforated to reduce their "ram-air" effect, to reduce power.
Aínda que non se podían introducir cambios importantes nos autos dese ano, a FIA solicitou que a toma de aire de todos os autos perforásense cun buraco para reducir o efecto de "ariete de aire" e reducir a potencia.