I've always been under the impression that you walk up and buy them.. I imagine 200 euros or so at least ( per person) but as far as impossible goes, i dont think thats the case
Current: '15 Yas Marina Blue F82 M4 Coupe/Loaded with no CCB
Gone: '11 E92 335is DCT Blk Sph /Oyster/Every Option
Gone: '05 E46 330iZHP Jet Blk/Ntrl Brwn/H&R/Dinan S3 Pkg /AC Schnitzer/Momo.