Design context
The FW08 was developed from the Williams FW07, but featured a shorter wheelbase and a significantly stiffer chassis. This was in response to the minimum ride height regulations introduced in 1981, which increased the g-loading experienced by the cars. While other teams, like McLaren, were adopting carbon fibre chassis construction, Patrick Head opted to continue using an aluminium honeycomb monocoque for the FW08. Frank Dernie considered the FW08 his favorite car during his time with the Williams team.
Technical specifics
The FW08 demonstrated remarkable aerodynamic efficiency. Wind tunnel testing at Imperial College showed a lift to drag ratio of 8:1, generating a substantial amount of downforce with minimal drag. This allowed the car to compete effectively with the more powerful turbocharged Renault and Ferrari engines of the 1982 season, which were producing upwards of 570 BHP at over 11,000 RPM compared to the 515 BHP of the Cosworth DFV engines. The underbody Venturi tunnels generated so much downforce that Keke Rosberg frequently qualified and raced the FW08 without a front wing, improving straight-line speed and allowing him to challenge the turbocars.
Racing career
Keke Rosberg piloted the FW08 to victory in the 1982 World Drivers' Championship. He won the Swiss Grand Prix and secured several other podium finishes throughout the season. Although on course for a win at the car’s debut in Belgium, tyre trouble hampered his progress. The car was updated for the 1983 season, becoming the FW08C. With ground effect regulations changing to mandate flat-bottom cars, the FW08C required significant modification. Rosberg achieved the car’s final win at the 1983 Monaco Grand Prix, eventually finishing fifth in the Drivers' Championship while Williams placed fourth in the Constructors' Championship – the best result for a Cosworth-powered team that year.
The FW08C also holds the distinction of being the first Formula One car driven by Ayrton Senna, who tested it at Donington Park in July 1983. Senna lapped faster than the regular drivers, Rosberg and Jacques Laffite, but Williams was unable to offer him a drive for 1984 due to existing contracts. Senna would later drive for Williams in his final season in 1994.
Regulatory outcomes
A six-wheeled variant of the FW08, the FW08B, was developed from the earlier six-wheeled FW07D. However, it never raced due to a ban imposed by the FIA. Patrick Head reported that the ban occurred because "someone in a FOCA meeting said it would drive up costs and cause chaos during pitstops." The FIA subsequently limited all cars to four wheels, with only two being driven.
Legacy / influence
The FW08C was retired after the 1983 European Grand Prix at Brands Hatch, replaced by the Honda-powered FW09. In 1985, two FW08Cs were entered in the Formula 3000 championship by PMC Motorsport, achieving limited success with a couple of third-place finishes. Rosberg also drove his FW08C to victory in the non-championship Race of Champions at Brands Hatch in 1983, the last non-championship Formula One race to date.
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