Seeing as you can get a 1600cc 4/4 with +4 wings and wheels, and a 2000cc +4 with narrow body, perhaps it's really just than MMC will build you whatever you want? Interestingly, my rather confused 2003 1800cc 4/4 has the wider, +4 body and is described in the registration documents just as a "Morgan" with no stated model!
