I spoke to a vendor of die cast models who travels all around the country at major racing events and has a decently sized booth with hundreds of models in display (saw him during the 12 Hrs of Sebring as well as in Lime Rock 6 months later and his tent was stocked to the gills!) I specifically asked him about the 1///M, and he did indicate there has been customer interest, however most often the car manufacturer has rights for a certain period of time before an independent manufacturer can go ahead and fabricate a certain car model. He said Porsche is by far the worse, often keeping rights to certain models for years before companies like Bburago/Maisto/Mattel et all can start making them.
2011 BMW E82 1///M: AW, ZPP+ZCV, HK, Apps; Akra CF+Valve control, MadDad mids, K&N, Forge FMIC, P3gauge, EuroTails, Tint, CF Mirrors+Spoiler+Roof+RevoZ diffuser, 10mm H&R, IND grills+gills, xCDV, LUX AE
2008 Audi B7 RS 4: Sprint Blue, Audi Exclusive Euro Interior, Premium+Titanium Package, EPL Tune, Stasis Ohlins MS coilovers, Milltek valved exhaust+DownPipes, Stoptech lines, Tint, ADR V1, Lidatek, Lamin-X, Strasse Forged SM7 3-piece concave wheels, 275/30/19 PSSs, Euro flat-bottom steering wheel, JHM SSK