After spending the evening exporting bitmaps of all the ships at the exact same scale (2.9 pixels per metre) I have been able to add the “comparison” TAB to the Codex.
You can now pick any vehicle and compare it to any other in both scale and statistics. So if you want to see if your Beluga is an upgrade from an Imperial Fighter, now you can!
here: http://codex.elite-dangerous-blog.co.uk