Original sentence: At the start of the race, Prost got the better start of the two; but whilst braking for the first corner, Senna refused to back off and collided with Prost at , clinching the title for the Brazilian
Edited sentence: At the start of the race, Prost got the better start of the two; but whilst braking for the first corner, Senna rammed his McLaren into Prost's Ferrari at , clinching the title for the Brazilian