Help at last: Members of the public eventually come to the aid of the man, who had been writhing on the road
He told the Life News website: 'I just moved along the road and beeped to this BMW to make him take left or right, so I could overtake him.
'He began to drive close behind me. As we stopped at the traffic light, I went out and asked him: "Why are you chasing me? Did I offend you?"
'Then I went back to my car and as I was opening the door he just hit me at great speed.'
The man was speaking from hospital but his injuries are unknown.
Kalmykov is believed to have been detained by police for questioning pending expected criminal charges.
He had recently bought the BMW from a car hire company whose spokesman said: 'We have assisted the police and the offender was taken for investigation.'
Many Rusisan drivers now use 'dashcams' for their own protection in potential insurance claims, which have brought to light a host of road rage incidents that might otherwise go unnoticed by police.