The 16M had it's own, unique set of alcantara luggage. It may be far harder to track down though as it was very expensive new so probably not ordered by many owners. I've seen the corresponding set for the 430 Scuderia and it is beautifully made and detailed.
I found these pics of it.
Current: F50, 246 GT (x 2), 246 GTS
Past: 360M, F430 spider, 430 Scuderia, California (x 2), 458 Italia (x 2), 458 spider, 246 GT