Technical Analysis: WRC Cars 2017

[racerx1979]

Are you sure? I don`t know the rules for the current WRC 17 spec cars exactly but at least for the previous generations both titanium and magnesium was prohibited, would be strange to allow it now when the cars got enough more expensive anyway..
But if they allow it again than sure why not

I do not think Ti is allowed for the control arms, but is allowed for certain components such as springs etc. The rules still restrict certain components to be made of a specific alloy.