The victim thought he had seen Woodcock striking or punching the woman in the vehicle, but this was incorrect.
The victim was standing on the road when Woodcock revved his car and accelerated away, hitting the man and knocking him about 10m up the road, before driving away without checking if the victim was okay.
Woodcock's partner called an ambulance for the seriously injured victim, who was taken to hospital.
He suffered a fractured eye socket and cheekbones, a wound to his forehead, loss of feeling to his upper jaw, and bruising and grazing around his body. He may have also suffered skull fractures.
Woodcock pleaded guilty last month to wounding with reckless disregard and failing to stop to ascertain injury.
He maintains he did not intend to hit the victim with his car, which the judge accepted.
In his sentencing indication notes, Judge Butler said Woodcock had a "lengthy history" of criminal convictions, including three convictions for violence-related offending.
He today sentenced Woodcock to 27 months in prison, and gave him a first strike warning under the three strikes law.