year before. Other reasons given were that the FW15C, and by extension, the FW16, were simply evolutions of the FW14 and FW14B, which had been designed to suit the driving style of Nigel Mansell. The major aerodynamic difference between the three cars was the anhedral rear wing and downward sloping rear bodywork of the FW16. Adrian Newey said, "To be honest we made a bloody awful cock-up. The rear-end grip problem was purely a setup problem. We were learning about springs and dampers all over again after concentrating on active suspension for two years, whereas most people had been away for just one. We also had a rather silly aerodynamic problem—basically, the front wing was too low—but that was raised for Imola, by which time we were looking in pretty good shape." Newey said to the German Auto, Motor & Sport magazine in 2015 that, "[The 1994 Nogaro test] ... confirmed that the car's side pods were too long, which meant that the aero was split from the diffuser when the nose of the car dipped and the side-pods got too close to the track." Furthermore, Newey has stated that he and Senna were at odds regarding the development of the car, Senna suggesting that they further develop and use the FW15D in 1994 and Newey favouring the FW16. In addition, at a television program on the 20th anniversary of Imola 1994, Gerhard Berger recalled a conversation he had with Senna at the race in which Senna said: "We are now finally aware of the problem with this car and in two or three weeks from now the problems should be solved." The FW16 indeed became more competitive after this timeframe. Williams FW16B Following the Imola changes the car was again incrementally updated and labelled as FW16B by the German Grand Prix. This version featured a longer wheelbase, revised front and rear wing, shortened sidepods, and the compulsory opened rear on the airbox and cowling in accordance with FIA regulations following the accidents at Imola. The shortened sidepods arose due to a necessity to use larger bargeboards after the front wing endplate diffusers were banned. This version of the car proved to be very fast and competitive. Hill battled Schumacher for the championship but lost by a single point in the final race in Australia, Nigel Mansell won that race, securing the Constructors' Championship for Williams. Williams FW16C The FW16C