Answer
They are the same.
Work Step by Step
The two forces mentioned in the question, $\vec{F}_{T\;on\;C}$ and $\vec{F}_{C\;on\;T}$, are always equal in magnitude and opposite in direction. This is a statement of Newton’s third law.
If the vehicles are moving faster before the collision, that just means that each of these forces will be larger, but they will still be equal to one another in magnitude.
