That's a good idea but time was a major issue. Trying to shoot 9 different cars on the highway takes quite a bit of time. But next time, I'll just need to take my time and adjust accordingly.
Note to anyone who wants to attempt rolling shots: If the sun it's directly over head, avoid taking highways that run east and west.
Not putting miles on your Ferrari is like not f*cking your girlfriend so she'll be more desirable to her next boyfriend.