There were probably several intnentional leaks of the 453

[AkcapSMART]

Between these two photo's, it's clear that Daimler "leaked" images of the actual design in December, at the same time they were leaking the camouflaged images, etc... the 'Artic Circle' images, etc. This happens often in order to temper the audience to the actual design.

 

These two December images are not speculative renderings. These are slightly dummed-down renderings of the actual final exterior design:

 

 

 

(my apologies for the English!)