There was a change in the seat options and availability between 2011 and 2011.5 models and configurations in September 2010. This was confirmed in the US, but I never figured out exactly what happened with the seats in Canada in the different configurations. There have been a few threads discussing this in the past that are worth searching for.
This thread started by iksenna comes to mind:
Hope that helps you guys.
2011.5 E90 Dinan M3, SS II, M-DCT, EDC, M Drive. Winter setup 220M w/ 255/275 Blizzaks
Performance Mods: Dinan St.1 suspension, exhaust, intake; TTPs; BPM St.II, DCT, servo tunes
Cosmetic Mods: OEM CF splitters, mirrors, center console, spoiler; Arkym CF diffuser; LUX; tint