Police were on Sunday investigating a woman who allegedly rammed a station wagon after a minor crash at Warilla, injuring its driver and a daughter.
The 31-year-old victim of the alleged road rage attack was driving with her two children on Little Lake Crescent when she had a "minor collision" with a sedan about 5.40pm.
Police allege after this collision, the driver of the sedan, a 50-year-old woman, then deliberately ran into the side of the station wagon containing the children. The driver then fled the scene.
The driver of the station wagon and her daughter suffered minor injuries in the crash, police said.
After speaking with witnesses, police found the older driver at a caravan park in Warilla.
They spoke to her there, and said investigations were continuing.
Police warned double demerit points are in place until January 2.
On Sunday, the annual Operation Safe Arrival, the Christmas road safety blitz, netted 25 drivers.
In the operation's first two days, 2145 speeding fines were issued, and more than 84,000 breath tests were conducted.
The state's Christmas road toll stands at two, with the latest fatality a motorcycle rider at Narara on the Central Coast.
NSW Police Traffic and Highway Patrol Commander John Hartley said drivers who engage in dangerous behaviour can expect to be caught.
"Those that drink and drive during this operation will be intercepted by the Highway Patrol who, along with general duty police, will be conducting random breath testing at various key sites throughout NSW," he said.
"It's also disappointing to see that people continue to drink and drive despite our continued warnings of the increased danger this causes to both drivers and other road users.
"Given that there were 18 fatalities this time last year, drivers can rest assured that we will do everything we can to ensure their safety and that of other road users."