A sharp twist in the road, a high-performance car and a young male driver were all factors in a deadly accident in Kiama Downs yesterday.The 22-year-old sole occupant flipped his Nissan Skyline multiple times after losing control heading north along Riverside Dr, shortly after midday.The quiet suburban street was startled by a series of horrific screeches and bangs, signalling the moments before the young Horsley man lost his life.Police believe the driver, whose name has not yet been released, clipped a median strip shortly after a sharp uphill corner; his car becoming airborne and rolling multiple times over a 50m distance.The vehicle eventually came to rest upside down on a resident's front lawn, about 100m down the road from where he lost control.The impact was so severe it caved in the roof of the car and tore off one of its wheels.Lake Illawarra acting inspector Scott Nelson said speed was being considered as a contributing factor.‘‘It appears the driver has lost control shortly before the intersection of North Kiama Dr,’’ he said.An off-duty police officer was the first to reach the driver, and was later joined by about 15 nearby residents.Police, NSW Fire Brigades crews, ambulance and State Emergency Service personnel also rushed to try to save the man.‘‘Police believe the man was killed almost instantly,’’ Insp Nelson said.Among the first on the scene was off-duty firefighter Phil Hay.‘‘I was in my front yard talking to a neighbour when I heard an extremely loud screech of tyres followed by two very, very loud crashes,’’ he said. ‘‘I live a fair distance away from where the accident occurred and I thought it would have been so much closer to where we first heard it.’’While other residents rushed to hose down the vehicle, Mr Hay tried to gain access to the cabin.‘‘It was very hard to gain access to the driver; the car was lying on a fairly steep block so they were there helping me keep my balance as I tried to get in,’’ he said.Denise Freeman, who heard the accident from her house five doors away, said residents deserved commendation for their efforts to save the man.‘‘There were people running around everywhere, trying everything they could to save the man,’’ she said.‘‘There was smoke coming from under the car when people were trying to get access to him - anything could have happened.’’The road was closed for several hours while crime scene officers investigated the area.The man’s body was eventually freed and the vehicle taken away, leaving behind a trail of tyre marks, a broken sign and damaged front yard. Soon after the accident, police were again urging motorists to slow down, as the NSW holiday toll rose to seven.‘‘This is a timely reminder for people to slow down on the roads during the holiday period,’’ Insp Nelson said.The accident occurred only days after a 51-year-old man was injured when he was thrown from his motorcycle while riding along the same road.