 Complete the following phrase:  The season is remembered primarily for a horrific accident at the Italian Grand Prix. The Talbot of Emilio Materassi swerved off the road at 200 kmh, rolled a number of times and crashed into the crowd, killing Materassi and 22 other people. The accident was the greatest single loss of life in motor-racing history to that time, and still the second worst to date, after the 