As uber-cool as this carrier is, we decided to order a Curt hitch (on-sale this month, with free shipping) and simply use our existing bike rack.
GLWS and free bump. Somebody buy this!
2013 BMW M3 Individual -- Fire Orange
2013 BMW X1 xDrive35i M-Sport -- Valencia Orange
2011 BMW 1-series M Coupe (#205/220) -- Valencia Orange (sold)
2009 BMW 135i M-Sport Coupe -- Space Grey (sold)