Introducing the Modulare C13 3-piece concave forged wheel, shown here in a brushed finish on the ever-popular 2011 MBZ S550 (W221). This Merc is sporting 22x9” up front and 22x10.5” out back. The Modulare C13 is now available in 19-22” diameters for most 5-lug vehicle applications, in both standard concave (C13) and deep concave (C13-DC) profiles.