The blood loss alone was rumored to have filled the footwell of his car .
Basal skull fractures almost always cause instant death , and Senna 's head injuries were extensive , traumatic , and not survivable .
The blood loss alone was rumored to have filled the footwell of Senna 's car .
Basal skull fractures almost always cause instant death , and Senna 's head injuries were extensive , traumatic , and not survivable .