Reading technical drawings is not everyone's interest. Our appreciation for the cars is more often in driving them or working on them. But the Lancia drawings give one an insights into the thinking behind them - what was on their mind, what did they study, how did they resolve things. Its not for everyone, but it can give understanding to why things are so well worked out in their cars- things just don't seem to happen by accident. They are well resolved. And that happened at many stages along the design and construction of the cars; the drawings are one part of a larger chain of operations.
Make no mistake - Lancia - both in their engineering, construction and also their design, used what one might call "big firm" standards (like Fiat, or other major manufacturers) for their products even if made in small numbers. For example, there is a very detailed engine bay and chassis drawing for the Aurelia B50, an incredible drawing about 6' long, that must have taken weeks to resolve - all for a production run of some 800 chassis. They never cut a corner in their products - and their drawings are all carefully and meticulously done. 
This became first evident in the Aurelia parts books, where exploded isometrics (orthogonal projects, which remain dimensionally true) revealed the overall assembly. It became clear that the Aurelia parts books were more interesting than the later ones, as the drawings were more artful - illustrated originally with pen and ink. Rationality came to the later models, with Fulvia and Flavia parts books as mere technical documents.

​Flavia 2000 joined the roost, for cruising around the midwest, take on trips. A bit of the Gentleman's Express. Wife says its cute and the most reasonable one brought home. Not all bad... 

A friend sent me this link: 160 pages of Lancias in the movies. What is nice about this is that it can be sorted by model, and you can look for 1950s films quickly. For finding movies of your favorite 3Ro.... Try looking at in list form, more easily viewed (and only 24p then). Also, the first couple of older cars may be a bit off, but still fun to see them all. 
​www.imcdb.org/vehicles.php?make=lancia&model=

In 2019, I was asked to come to Castlemaine and give a talk for the 100 year anniversary of the Lancia Kappa. Not knowing so much about the Kappa, the occasion was an opportunity to dig into the history of the early Lancias, the pre-Lambda cars, and see what was to be learned from them. 
The position that emerged was somewhat different than that previously understood: the typical understanding was that the early cars were well made, even interesting in their own right, but not of the experimental or radical nature of the later Lancias, from the Lambda one. 
The approach taken was different, in that the whole of the Lancia undertaking, from 1907 to 1922 was seen as a single period of exploration and invention, of ideas tried and some abandoned; but that once seen all together, the work of that time set up and gave rise to the inventions and innovations of the Lambda. Seen another way, the breakthroughs of the Lambda, and its sister, the Trikappa, did not come from nowhere - and that to understand them, one had to assess the origins of such independent and different thinking. And that those origins were in the early years of the company, if one were to look closely for them.
A written version of the talk can be found as Emerging Traditions, here: Articles