This is sad, but not altogether surprising:

Historic replica airplane, the Bugatti 100p, crashes near Burns Flat, pilot and designer Scotty Wilson dies

On its third test flight it took off normally, but suddenly banked to the left and crashed nose-first. The Bugatti 100p was a remarkable design… and remarkable designs have a history of being rather finicky.

As yet no news on the cause. But given that there were likely a number of cameras operating on the aircraft, and numerous cameras on chase aircraft and hand-held by ground observers, the cause probably won’t stay a mystery.

The third flight was apparently to be the last. After this it was to go to a museum in Britain.