a) The Henu Barque appears to turn up in Herge's work a lot of times, so picking up the details from seeing the three figures standing on the steps and making other associations, I would assume that this one references configuration of the Henu Barque again?
|Henu Barque from Papyrus of Ani|
black and white image of the Henu Barque from the Papyrus of Ani
(source: The Ancient Egyptian Book of the Dead, The British Museum Press)
b) Three rudders becomes three people
c) The head of the man become car number 3 while his skirt becomes the Citroen.
d) Perhaps the support block becomes the "The End" sign.
e) Kestrel head becomes a tire, while the segments of white become surrounding people, and then the white segments also inspires the white bubble car.
f) Skirt becomes blue Citroen and back of car 7
g) The head of the Oryx becomes car number 2 while its horns become the cars behind it