The crash happened over six months ago but officers say they have now charged a man.
At around 9.40am on Friday, 22 December reports were received of a collision near to Tesco in Stadium Industry Park, St Helens believed to have involved a Bentley and a Nissan.
A man in his 60s was taken to hospital and was in a critical condition but is now recovering.
Following an extensive investigation, 39-year-old Paul Bordache from Gladstone Street, St Helens has been charged with causing serious injury by dangerous driving, using a motor vehicle without third party insurance, and driving a motor vehicle otherwise than in accordance with licence.
Bordache will next appear at Liverpool, Knowsley and St Helens Magistrates Court, Derby Square on Thursday, 12 July.
Anyone who witnessed the incident and has yet to come forward is asked to contact 101 or Merseyside Police Roads Policing team on 0151 7775747 quoting incident number 0517327134.