Well, I had already decided that one of the last two pairings ought to be E and 2, but hesitated to post anything because I thought (and still do) that I might be missing something.
But anyway, as already stated, #2 is the High Court building in the Indian city of Chandigarh, which was planned and designed by Le Corbusier.
Photo E was taken at the Weissenhof Estate in Stuttgart. This was a project from 1927 where 17 different architects contributed buildings to what was initially a kind of exhibition of modern architecture, but which was also intended to be a practical place for people to live. It still exists, though some of the original buildings were destroyed during WW2.
Le Corbusier was one of the architects involved, contributing two buildings, one of which is now the Weissenhof Museum. What made me hesitate is that the building shown in E is not one of his, but was designed by Ludwig Mies van der Rohe, who had overall control of the project. It consists of numbers 14 to 20 in the street Am Weissenhof.
The car is a Mercedes Benz 8/38 PS saloon. I'm not sure of its exact date, so it may be more correct to call it a Typ Stuttgart 200. The only other thing I can say at the moment is that, having checked out the building on Google Street View, the puzzle picture is reversed. The one below is in the correct orientation.
