Teenage racing driver Brock Giblin suffered serious burns during a crash at Sydney Motorsport Park at Eastern Creek on Friday.
An ambulance spokeswoman said the 17-year-old racer crashed at about 11.45am.
“He has been transported to Westmead hospital in a serious condition with burns to 70 per cent of his body,” she said.
The burns are believed to be concentrated across his torso, face and abdomen.
Giblin was practicing in his Mazda3 race car ahead of an event for production car.
Richard Craill, media manager for the Shannons Australian Motor Racing Nationals series, says Giblin’s car rolled several times at turn one of the circuit before it caught alight.
“The vehicle and drivers’ extensive safety systems and equipment performed as designed, protecting the driver,” he said.
“There was a fire that was quickly extinguished following the vehicle coming to a stop, however the driver did sustain burns during the accident.”
A police spokeswoman confirmed that "The vehicle caught alight whilst the driver was trapped inside."
Giblin, a year 11 student at Maleny State High School in Queensland, joined the Shannons race series this year.
Sydney Motor Sport Park spokeswoman Sam Stevens said safety crews responded quickly to the incident and that police and ambulance staff remain at the site.