Williams FW15C - FW15D

FW15D

In early 1994, two FW15C chassis were modified to run without electronic driving aids, which were banned for 1994. The FW15D was an interim car with passive suspension, and no traction control. The cars were tested by Senna and Hill in January 1994, but the car was far from optimal, as it was originally designed around an active suspension system. The FW15D was used during the Rothmans Williams Renault launch at Estoril, on January 19th 1994 (Notably with David Coulthard driving with an onboard camera recorder, and not Ayrton Senna as many have incorrectly assumed). The car was retired once the FW16 became available, yet it was notably the quicker car of the two in early season testing laptimes.