A remarkably tight community sustains the R63: a private Facebook R63 AMG Owners Club, the AMG Private Lounge forum, MBWorld, and a famous Grassroots Motorsports build thread ('The Unicorn of My Destruction'). Because so few cars exist, owners track each other and each auction; one buyer of a second car noted it put him at '1% of the stock.' Shared parts with other 63-badged models help keep them serviceable.
The R63 owners' community
Mercedes-Benz R63 AMG (W251) · ownership