Mercedes: Red Bull sidepod F1 test showed “substantial” loss of downforce

The huge leap forward that McLaren has made with its Austrian/British GP package, which was inspired by both Red Bull and Aston Martin sidepod ideas, has left rivals pondering if they too need to make a dramatic change of direction. 
And while Mercedes has long insisted that sidepod and bodywork tweaks are not a key performance differentiator, rivals are clearly seeing good gains …Keep reading