We are not much fond of music, so nothing much to do while driving.
At such a time you need to start any pointless discussion in order to kill the time. Regardless of topic. Politics, Current affairs, science, history, religion, whatever.
And in order to keep the flame burning, difference of opinion is must. Controversy is the key to discussion. Otherwise, if everyone is agreed at a point, it's end of discussion. Argument dies the very moment.
Keeping in view the significance of controversial discussion, me and Asim bhai have mastered this art, by the passage of time.
As Farhan is usually driving most of the time, so he can't afford to be a participant. That's why he usually plays a judge or sometimes “refree”.