From MINIUSA Press:

MINI USA reported consistent demand for MINI automobiles, resulting in an extremely low 3.4 days supply of inventory. Therefore, sales of MINI automobiles in June were relatively flat, with sales of 2,896 over the 2,916 sold in June of 2003. First-half sales of MINI automobiles were up 1.6 percent, with 17,812 cars compared to 17,530 sold a year ago.

This seems completely normal since we're in a transition period between model years. As many readers are probably well aware, quite a few dealers have next to nothing on their lots as we speak.