Over time, we've used this column as a forum to discuss various aspects of engine air flow. One topic we've not included in these discussions has been the practice of comparing port volumes as a ...

An engine with poor airflow isn't going to hit fuel economy benchmarks, and if that isn't addressed, MPG numbers are only going down. One of the primary gatekeepers of airflow is the diesel ...

Full disclosure: I love the Citroën C4 Cactus. Really, I just love French automakers. Kudos to them for flexing their design muscles, creating products that compete in the mass market while not ...