Gorgeous car and if the CCB's are in good health you'll have many years of life on them. Also, you'll rarely ever have to clean the wheels except for your typical wet road debris. That said you will find that they are a bit noisy.
This is a good site for verifying the spec/build of the car.
https://www.mdecoder.com/
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2015 F06 M6 Silverstone Metallic II, Individual Full Leather, B&O, Night Vis, CCB, RKAutowerks (CP Rods/Pistons, DI Cams, CF Intakes, Coated DP's & Billet Diff Brace), InfinityAuto Turbo Inlets, Mishi Oil Cooler, JB4, XHP S3, BM S3