They look sweet and fill the rim nicely...
I have chosen these for mine on the left (330mm rotor 4 pot caliper) and on the right (356mm rotor 8 pot caliper). The engineer wouldn't allow me to have small brakes with the power mine will make, therefore a larger rim will be needed indeed.
I used a 360mm front rotor with the 4 piston Brembo.....wanted to use the matching 8 piston AMG Brembo's that would suit my rotors...but the cost was just going to spiral out of control a tad, ha ha.
The front discs are 36mm thick too, so somewhat heavy at around 28 pounds each but great for thermal mass at least and should never over heat them hopefully or run out of brake for anything I should do with the car.
I was able to build the front brakes on my car very cheapy too...just by shopping around (and getting lucky too) Got the pair of brand new Brembo calipers for $150 (assembly line take-offs because they had some small scratches) and the rotors are $160 or so each right from Mercedes. The caliper mounts I made out of some 5/8" thick steel. The hub are billet steel ones from over there I got for nothing in a deal.