Not a match for Bild 112, but mainly because there is no plan taper.
The peaked roof doesn't [appear to] add frontal area, but it has severely compromised rear headroom. The peak angle is 204° so the brake is only 24°. The long vortex generating edges fore and aft reduce the air that goes directly over the top. There is no bed/cab gap.
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.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
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.Because much of what is in the published literature is nonsense,
and much of what isn’t nonsense is not in the scientific literature.
-- Sabine Hossenfelder
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