威廉姆斯车队
Throughout 1993 and 1994, Coulthard was employed by Williams Grand Prix Engineering team as their official test driver. A race seat became available after the death of Ayrton Senna in the 1994 San Marino Grand Prix. Coulthard received a telephone call from team principal Frank Williams to test the Williams car at Jerez circuit over four days, causing him to miss a Formula 3000 race at Pau.