Yeah, I'd guess that once the remaining 2008s are all gone the rates will come down a bit... but from what I can tell in Canada the rates on M cars have always been high aside from when they get dropped to clear out the previous year's stock.
The US market is a different story of course... but then again it always has been.
Current: 2015 Porsche 911 Carrera GTS Sapphire Blue / Black Leather + Alcantara Interior
Past: 2013 Mercedes C63 AMG Sedan Magnetite Black / designo Porcelain/Black Leather
RIP: 2011 BMW M3 Sedan Alpine White / Fox Red Novillo Leather
Past: 2008 BMW M3 Sedan Melbourne Red / Black Novillo Leather