I actually wouldn't be surprised at all if we've improved airflow relative to license plates, as well. The whole push to increase fuel economy means figuring o

I actually wouldn't be surprised at all if we've improved airflow relative to license plates, as well. The whole push to increase fuel economy means figuring out how to get air not to hit anything head-on, which includes bumpers and license plates. But in any case, I really would like better metrics than license plates and windshields. It amounts to anecdotes masquerading as data, and I have to assume that there are scientists who've made more accurate measures over the years that are more objective.