There are many many many videos to be found on the Nissan Skyline GT-R PGC10 and I have seen most of them by now and most of them focus singularly on the racing history of the GT-R and/or coupe alone. That’s why I really like this particular video better than most of the others: it focuses on some of the developments done by Prince prior to the GT-R in the first part.
Friday Video Nissan Skyline GT-R
Mostly the development of the S20 engine contributed to the success of the Nissan Skyline GT-R PGC10 and its engine was a development effort of the Prince 380

And in the second part it also focuses on the other mechanical parts that made the Nissan Skyline GT-R an awesome car:

Direct link to videos: 時を超えた傑作 「スカイライン2000GT-R」1/2 and 時を超えた傑作 「スカイライン2000GT-R」2/2