|Rumors are that Red Bull was one team employing the trick setup|
The FIA sent a warning shot across the bow of Formula 1 teams who cheat by using steering angle to gain an aerodynamic advantage via the use of trick front suspension systems.
A Technical Directive sent by the Charlie Whiting last week made it clear that the governing body believes that in 2017 some teams designed their suspension and steering systems to lower the front ride height in cornering, potentially providing an aerodynamic benefit and hence increasing grip.
Whiting wrote: "It became clear during the season that some teams were designing the suspension and steering systems in an attempt to change the front ride height of the car.
"Whilst some change is inevitable when the steering wheel is moved from lock-to-lock, we suspect that the effect of some systems was a far from incidental change of ride height.
"We also believe that any non-incidental change of ride height is very likely to affect the aerodynamic performance of the car."
"Hence, any change of front ride height when the steering wheel is moved from lock-to-lock should be wholly incidental.
"We will therefore be asking you to provide us with all relevant documentation showing what effect steering has on the front ride height of your car and, in order to satisfy us that any effect is incidental, we believe that ride height should change by no more than 5.0mm when the steering wheel is moved from lock-to-lock."