Read the following paragraph and answer the question. Give ONLY the answer, no other words or explanation.

For example:

Answer: <most likely answer, as short as possible>.

Paragraph: My mom was convinced that he was coming back , but I was n't so sure . I gripped the steering wheel at this thought . " Yeah , hey , I ' m on the highway now . I should go before I take out too many vehicles . " " Wait !

Question: What is the narrator doing in the described scene ?
They are driving a car .
Driving on the highway.