I've had a few cars with AMG appearance packages and/or AMG brakes. For sure, the AMG brakes are better than the ordinary ones, and the parts for a brake job cost a lot more too! "Been there, done that." And if you have the AMG brakes package on the car, and buy brake parts blindly for the year & model, you'll probably have wrong parts, and it can be a problem if you are doing a brake job and have the car apart and only then to learn the parts are wrong!! Because the right parts, are probably gonna take a few days at least, if not longer, to have brought to the house. For that reason I call a dealership asking for brakes parts, price and availabiIity before doing the brakes, then get the part numbers for the brake parts, according to the car's VIN number. Their computer will know exactly the parts for that specific car. Then, I find those exact parts online as cheap as I can while still getting genuine Mercedes made parts.
I once had a (Black) 2001 W163 ML320 SUV that had the AMG logo on the right rear of the vehicle. I knew it was not an AMG vehicle, but I left the badge on there because I didn't know what might happen to the paint if I took it off. Didn't run when I got it, the engine mounts were bad, ($400 including labor) the cats were melted and plugged, had them removed and replaced with pipes, ($400) and the shifter was damaged by water ($1065) After that it was a great runner. The water ingress had come from the sunroof channel, at the right side a little hose brings the water from the sunroof, it had shrunk and pulled itself off near the front fender. There was not enough room inside the fender to reach in and replace that hose or re-insert it, so I had to use black electrician tape to seal the sunroof shut. I used a 3M super 88 tape two inches wide, wiped the area with alcohol first and cut it perfectly and put the tape on and you could never notice it was there. Voila! Waterproofed vehicle.