Conversation so far:
What is Chris Amon known for?
Chris Amon is widely regarded as one of the best F1 drivers never to win a championship Grand Prix.
Did Chris Amon win anything else?
Chris Amon won eight non-championship GPs, the Silverstone International Trophy, the 1000 km Monza, the Daytona 24 Hours, the Tasman Series, and the famous 24 Heures du Mans.
Can you tell me more about the 24 Heures du Mans?
Held annually since 1923, it is considered one of the most prestigious automobile races in the world and has been called the Grand Prix of Endurance and Efficiency.
What is Chris Amon most famous for?
Chris Amon is widely regarded as one of the best F1 drivers never to win a championship Grand Prix.
When did Chris Amon compete?
Chris Amon was active in Formula One racing in the 1960s and 1970s.
What happened with Chris Amon in 1976?
Chris Amon had a heavy collision with another car and once again was not injured. He then did not take part in either the Canadian or United States Grands Prix.
Did Chris Amon have any other accidents?
A 1963 accident in practice for the Italian Grand Prix left Chris Amon with three broken ribs. He missed the Italian and United States rounds.

Question: When else did he compete
Self-contained rewrite: When else did Chris Amon compete?