I've always viewed getting an ///M car as more of buying a full and balanced package. There are a lot of mods out there that can achieve the same individual components in a 550 but doesn't give you the completed package. The ///M brand is just the culmination of a total package. I don't feel that the m5 is a modded 5 series. It's just a different car all together that happens to share some parts.
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