Sorry, 4a only applies to earlier than 2014 cars then. I wouldn't worry, the floor panels on your 2014 car look a little different to my 2013 car with NVH kit retro fitted. The panels look shorter on yours, maybe the centre one is deleted for more cooling airflow to the bevel box? Unlike a Lotus I cannot see it making much difference to the "downforce and aero package" of the M3W.
