Answer:
<u><em>Third Conditional:</em></u>
If (Past perfect) , (future perfect)
<u><em>So, it can be like:</em></u>
=> If the silver car had not sped up, there would not have been such a tragic accident.
=> If the silver car had slowed down, the accident would not have happened.
=> If the red car had slowed down, Many lives would have been saved.
I hope this helps you!
Have a great day!
Don't hesitate asking anything regarding this!