"until a safety car was necessitated for the Heidfeld's stricken car", needs rewording slightly I think. Either "for Heidfeld's stricken car" , "the stricken Heidfeld's car" or another alternative.
"The damage however was not severe enough and was repaired", enough is a bit out of place here. It can be removed or expanded on e.g. "severe enough to rule him out"
"while Prost lost nine places over the same distance because of his car was damaged.", sentence needs tweaking, I'm guessing the of shouldn't be there?
"Bird took the lead from Abt by aggressively turning to the inside of Abt at the turn five hairpin", possible repetition of Abt could replace the second use with him I think.
"until a safety car was necessitated for the Heidfeld's stricken car", needs rewording slightly I think. Either "for Heidfeld's stricken car" , "the stricken Heidfeld's car" or another alternative.
"The damage however was not severe enough and was repaired", enough is a bit out of place here. It can be removed or expanded on e.g. "severe enough to rule him out"
"while Prost lost nine places over the same distance because of his car was damaged.", sentence needs tweaking, I'm guessing the of shouldn't be there?
"Bird took the lead from Abt by aggressively turning to the inside of Abt at the turn five hairpin", possible repetition of Abt could replace the second use with him I think.