Lotus have really struggled to realise the potential of the E22 this season with issues from the Renault power unit causing their fair share of these. However a complex asymmetric design was also bound to be fraught with issues too and makes aerodynamic changes even more difficult. With temperatures rising at Hockenheim the team decided to install and trial some additional cooling inlets under the roll hoop.
It's unclear what the team were looking to cool, whether it be an oil cooler that the team had also moved or whether it was simply just additional cooling for the powerunit. The team didn't race these additional inlets however, as, as we know any additional apertures results in increased drag and so the team clearly took the decision that the cooling advantage either wasn't required in Germany or didn't supersede the drag component.