The Solicitor-General's office is reviewing a case in which an Auckland investment banker ran over a man and broke his legs.
Guy Hallwright was found guilty in June of injuring another driver during an altercation in Mount Eden in September 2010.
He was sentenced by Judge Raoul Neave last month to 250 hours community service and ordered to pay $20,000 reparation to the victim.
A spokesperson for the Solicitor-General's office says it has received the case files from the Crown Prosecution Service and will look into whether there are grounds to appeal the sentence.
Barry Wilson from the Auckland Council for Civil Liberties has criticised the sentence as too light because of the severity of the victim's injuries.
He says it also sends a message to the public that there is a two-tier justice system, one for the rich and one for the poor.
Mr Wilson has welcomed the review and is urging the Solicitor General to appeal the case, saying it is in the public interest.
Any appeal would need to be filed by 27 September.