FWIW, In my 0ver 50 years of buying cars I learned long ago that what someone at a dealer says is usually said in ignorance. Mine did not have the red calipers......not stock with RE50's, my daughter paid for her red calipers with the all season tires. The official Ford data is shown below.
Ford info
"From ST options 2016 "The red caliper came with the black wheels and either tire. That was the $375 I remembered, as I said, my daughters has the Black wheels and red calipers with the OEM All Season tires from the factory.
.
"Wheels: 17" Rado Gray Painted
STD
Wheels: 17" Premium Ebony Black
$375"
(The red calipers came with the black wheels with either tire as ordered)
"
Equipment Group 400A (ST package)
-$490
- Engine: 1.6L GTDI EcoBoost
- Transmission: 6-Speed Manual
- Tires: P205/40R17 84W Summer
- Includes performance brakes and track pads.
- Wheels: 17" Rado Gray Painted"
The so called performance brakes and track pads was standard with both the Gray and Black wheels. Came with the Group 400A (ST package) wheel color according to Ford had zero to do with performance brakes or pads, see above.
Ford parts shows only one pad for the ST, same P/N pads for 2014, 2016 and 2019. What 2 part numbers are you showing for a 2016? PIA to look all of them up, Hawk offered so called performance after market pads back in the early years. I replaced mine at 50K with the OEM pads. Nor does the listing of options for the FiST listing say anything about the black wheel coming with anything different in pads just red calipers as shown above.