As usual the respondence of the autopuzzlers is great.
Yes, any help would be highly appreciated, because of course the aim is to do something as close to definitive as possible.
I've already listed about 300 coachbuilders, but I'm pretty sure that many more will come up.
If you (or any other contributor) will be so kind to send me lists of names (going deep into history and details will be in "phase two" of the job), I'll reduce the risk of missing some minor coachbuilder.
Of course, any contribution will be credited into the book.
Thanks in advance, friends!