Extra exclusivity? I don't see it? A C63 AMG will always be some sort of exclusive car; with or without the P31 option… They are both great machines.
Resale value is of zero concern to me… I will buy this car for me and not for the next owner. I tend to keep every car at least 5 years if I like the car and longer if I love them. So with or without P31 the value between the two will likely be almost the same in 5 years time and resale value will depend more on the mileage then the P31 option.
Personally; the better brake discs (rotors) is something that might appeal me…. I like good brakes; but if the standard ones have the same braking performance on the street then the P31 brakes then it's also ok for my street use. I think the red braking calipers look out of place and are to striking for this type of car. The grey calipers look way better and more understated. I also don't like the interior with alcantara inserts… I want full leather
Still, did not found a definitive answer if the P31 pack also includes internal changes to the C63 engine or if it's only a remap?
I did found a German C63 2012 brochure that stated that the AMG Performance suspension was not part of the P30 Performance package and was a separate option…. There is no mention of the P31 option…? I was under the impression that P30 was the performance option in the pre-FL model (until 2011) and that P31 was the performance package on the FL model (from 2012).