If you've read the thread you should be clear i think but here's the summary
Ettore Bugatti was Italian....
He went to France and made a factory there.....
All Bugattis were made in Molsheim, France until the mid-50s.....
Then, there's a gap of three decades.....
In the 80s another Italian, businessman Romano Artioli bought the rights to the marque and built a new factory in Modena, Italy where he produced the EB110....
That lasted until about the mid-90s (and about 130 cars) when the VW group bought the rights to the name after Artioli went bankrupt and a liquidation took place....
In the same liquidation German tuner house Dauer bought some tools and uncompleted chassis and produced about 5 more EB110's.... supposedly Dauer is the only place you can service an EB110 these days (not certain about that - just an assumption)....
Latest Veyron plant I believe is in Germany but it wouldn't make a difference even if it were in Molsheim since the car is 100% german now beyond any doubt....
So..... French, Italian or German any answer would be correct