Investigators will look at a number of things, including the trains' braking performance, wheel and track conditions, and speed and other information from data recorders, Weener said Saturday.

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These performance classes feature the most advanced cornering, acceleration, and braking skills to maximize control in challenging conditions and are designed for driving enthusiasts, law enforcement groups, military specialists, stunt drivers, automotive test engineers, and aspiring and current professional racers.

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In the high performance-driving classes, drivers work on autocross, skid pad control and threshold braking, as well as spend lap time on the racetrack.

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