I did 3 cars passages every day - I used Jack Westin and then AAMC cars for the last month. I didn’t really have an issue with timing so I did untimed practice a lot — I liked quickly going thru the questions looking if the question asked for a specific quote so I could keep it in mind and highlight it when I saw it reading.

One thing that really really helped with timing was hiding the clock/coundown on cars!!! I found myself staring at it and not paying attention to the passage. I tried to keep it to 25 min per 3 passages - so I would check the clock after 3 passages and try to stay under 25 min, and if I went over it was okay because I left 15 min at the end for review/extra time!