Question: what is average speed at daytona 500?
Answer: Bill Elliott set the pole position qualifying record on February 9, 1987 when he navigated around the circuit with a 42.782-second lap, which is an average speed of 210.364 miles per hour (338.548 km/h). From 1988 to 2018, NASCAR required teams to install a restrictor plate between the throttle body and the engine.