revised nose profile with the wings positioned slightly higher, new aerodynamic end plates which were slightly taller, a revised wheelbase and a re-shaped cockpit surround. Other cockpit changes were designed to accommodate Senna's desire to be made more comfortable in the car and included changes to the steering column design to adjust the steering wheel position in line with Senna's personal preference. This included welding an additional extension onto the steering column. Criticisms The car was shown to have severe shortcomings at its debut. The FW16 lacked the active suspension and traction control of the previous season's FW15C, yet was an evolution of a chassis that had been designed for and depended on these systems. It suffered from a very narrow driveability setup window that made it difficult to drive until the modifications to become the FW16B. This could be seen when Senna, pushing to close the gap between himself and Schumacher, spun out of second place during the Brazilian Grand Prix, and by the identical spins in practice by Hill and Senna at Aida, with Senna commenting on the Aida practice spin: "I can't explain it. I was actually in one of my best positions at that corner when it went. It looked silly and stupid but better it happens today than tomorrow." The narrow driveability window stemmed from the fact that the car's aerodynamics were an evolution of a platform designed around the active suspension. The aerodynamics were therefore designed to work with active suspension and did not have the latitude required in a passive car. Newey said, "The 1994 car was not a good car at all at the start of the year. It was very difficult to drive. We developed the aerodynamics using active suspension and we developed them [to work] in a very small window. Having had active suspension for two years, when we then lost it we had more trouble re-adapting to passive suspension than other people who hadn’t been on it for very long". "We’ve had a few problems", said Newey after the Pacific Grand Prix. "Mainly, it is a grip problem in the slow corners. In medium- and high-speed ones, it is pretty good." Paddy Lowe, who had left Williams for McLaren in 1994, said in 2014, "Aerodynamic experimentation in those days was not sophisticated enough to understand the ride height sensitivity of aero. In the wind tunnel now we run ride