This is one area where teams have won out against FIA regulations with the current crumple zone now positioned on either side of the cockpit. Up until 2016, this deformable zone was mandatory at the front of the sidepod with a fixed length and dimensions set by the FIA. Teams were frustrated by this set-up as it was terrible for aerodynamics and reduced the cold airflow to the radiator. In only two years since the relaxing of those rules, almost all teams had moved the crumple zone off the sidepods and reduced the sidepod size considerably. Over the past two decades, sidepod design has come to include undercuts to channel and direct airflow increasing cold air cooling volume and intake speed.