Would some form of rear splitter help manage the airflow to prevent the natural sucking in to the cabin picking up exhaust fumes?
Perhaps even a modified tailpipe with a downturn?
A shroud to mask the tailpipe or channel the slipstream to blow exhaust away?
Would an airdam at the front manage airflow under the car and help?
Whatever the mods to the Omex map there will always be fumes, so can they be managed by airflow improvement?
