Combs’ record is for the fastest speed on land achieved by a woman, and the official number is 522.783 mph (841.338 kph).
It’s the first time a new record has been set in this category in more than 40 years. The previous record stood at 512.7 mph, achieved by Kitty O’Neil back in 1976.
While Combs was widely known for appearing on TV shows such as “Mythbusters,” “All Girls Garage,” and “Overhaulin’,” she also competed in sanctioned motorsports events, including the Baja 1000 and King of Hammers. Her first-place finish at the latter earned her the nickname “Queen of Hammers.” Becoming the fastest woman on Earth was always her dream, though, according to a statement made by her family following her death.
An investigation into the exact cause of the accident that led to Combs’ death revealed that the front wheel of the streamliner she was piloting, known as the North American Eagle Supersonic Speed Challenger, had failed, likely due to striking an object on the ground.
Source: Motor Authority