50 pre-sold @ £250k each is a good chunk of money.
Full hand build not Superform so expensive expertise needed there! English Wheel panel forming a d stitching of sections.
It is a fine weather car so actual drivers will be limited.
The design looks ok with just a couple of features as negatives.
It is clearly aimed at big money buyers wanting an exclusivity. More so than previous limited edition models (trads/CX/M3W etc).
MMC must think they can fit the build in, perhaps done elsewhere and/or final assembly in the factory where existing skills are there, such as interiors.
I wonder how it might get to the US ? That would be the ideal as a California car. Less practical elsewhere.