Conversation so far:
When did Moss return to racing?
In 1980 he made a comeback to regular competition.
Where did Moss compete after he returned to racing?
in the British Saloon Car Championship with the works-backed GTi Engineering Audi team.
Did Moss win when he returned to racing?
CANNOTANSWER.
Why did Moss leave racing?
he had scared himself that afternoon.
He was 81.
What happened that scared Moss?
CANNOTANSWER.
Are there any other interesting aspects about this article?
Throughout his retirement he raced in events for historic cars.
What events for historic cars did Moss race in?
driving on behalf of and at the invitation of others, as well as campaigning his own OSCA FS 372 and other vehicles.

Question: How long did Moss keep racing?
Self-contained rewrite: How long did Moss keep racing?