A young black man is fortunate to be alive after he was badly injured in a hit and run crash.   The 19-year-old man, who works at Southmead Hospital in the UK, was on his way back from work on July 22 when a car being driven along Monks Park Avenue ran him over in what friends and eye witnesses say was a racially motivated attack.   Friends also claim that the occupants of the car screamed “fu**ing ni**er” as …