Mine was ordered retail because I have my name on the window sticker, which I think is just awesome.
I think that the hold on the mustangs have ended so I would assume that it doesn't matter now which way you have it ordered (stock or retail), but I personally love that my name is on the window sticker.
'66 Coupe 200 cu in | Candy Apple Red | Black Interior | Rally lights | A/C
'12 VW GTI 4 dr | DSG | Neuspeed P-flo intake | pushing 225 whp
SOLD '11 GT Prem Kona Blue | Saddle | Sec Pkg | Brembos | had many mods