The reckless guide caused the crash in California last month that injured the actor and comedian Kevin Hart and two other people, the state highway patrol reported in a report released Thursday.
Jared Stanton Black was driving Hart's Barracuda in 1970 in Plymouth, when he crashed into a ditch early September 1 in Malibu, according to the California Highway Patrol. Hart suffered back injuries, authorities said.
Hart's production company said that Hart underwent back surgery and is expected to fully recover.
The actor does not expect to return to full-time work until the beginning of next year, assuming that everything remains in line with his physical therapy, his lawyer, Andrew Brettler said.
The cause of the accident was determined by reckless driving, which is defined by state law as "a person driving a vehicle on a highway in voluntary or unrestrained safety for the safety of people or things is guilty of driving reckless ", the report says.
As he turned, the driver "accelerated rapidly", causing the muscle to break the right rear tire's traction and resulted in a loss of control. The car hit a tapered sidewalk and a vinyl fence before descending along the embankment and hitting a tree, according to the CHP report.
"I have nothing but love for Jared and I wish him and Rebecca a speedy recovery," said Hart in a note through his lawyer, referring to the driver and the other passenger, Rebecca Kathleen Broxterman.
Phil Helsel contributed.