Rear Duct Modification for better brake & caliper cooling

I modified the rear panel covers to create air deflectors which now send air in the direction of the rear caliper to better cool the brakes. The Q50 is the first car I have ever had that chewed through rear pads and rotors much quicker than fronts, gets a high-speed brake judder in just 12-15k miles due to increased lateral runout of rotors and I think it is all due to excessive heat build up.

Other common causes for excessive lateral run out of rotors can be over-torqued wheels, run out in wheel bearings, or just cheap quality materials. The bearings have been checked and the wheels are always (re)torqued by me, by hand,with the wheel in the air to spec every time anyone removes it.

 Only time will tell how this mod will work, though initial results are promising.

Modified air deflectors.

The design issue I have with the rear brakes of the Q50 are:

Q50 0-60 mph times Red Sport vs Hybrid

I had a shiny red 2017 Q50 Red Sport 400 AWD with all options except ProPilot for a few week and I decided to run a few 0-60 mph runs using Torque app and Bluetooth ODB II interfaces as I had done for my Q50 Hybrid here.

2017 Q50 Red Sport AWD

The best I could get in a run was about...