Valid question. Something many here are wanting to see, and curious to know why it hasn't been done. But there can be many reasons, all speculative of course as to why no actual picture yet. It could be design secrets, logo specifically, even color schemes can be trademarked; could be wanting to put out a picture in full glory mode, completely finished design rather than an unfinished product. Picture restoring a classic auto, or the design of a new race car... What would be more appealing, eye catching, with WOW! factor... a dull, primed frame, on a chassis, siting on blocks, or the finished, bad-azz product on a showroom floor?
IMO
Regards,
MO
Opinions are as plentiful and varying as grains of sand. My opinion is but only one, and may differ from your own, or from an opinion I've previously held.
Cordially,
Maximus Opes