Answer:
To drive a race car
Step-by-step explanation:
To determine an infinitive phrase; first, we need to look out for the infitive.
This always include "To" + a verb
In this case, we have "To drive" as the infinitive.
Then, the infinite is always followed by an object.
In this case, it is "a race car"
Hence, the infinitive phrase is "To drive a race car"